Killer Wahle

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Killer Wahle

Worttrennung: kill·er whale, Plural: kill·er whales. Aussprache: IPA: [ ] Hörbeispiele: —. Bedeutungen: [1] Zoologie: Killerwal, Großer Schwertwal (​Orcinus orca). Many translated example sentences containing "killer whale" – German-English dictionary and search engine for German translations. Many translated example sentences containing "orca whale" – German-English dictionary and search engine for German translations.

Killer Wahle Beispiele aus dem Internet (nicht von der PONS Redaktion geprüft)

Der Schwertwal ist eine Art der Wale aus der Familie der Delfine. Er wird auch Orca oder – zur Abgrenzung vom Kleinen Schwertwal – Großer Schwertwal genannt; eine alte deutsche Bezeichnung lautet Butskopf. Der Schwertwal (Orcinus orca) ist eine Art der Wale aus der Familie der Delfine (​Delphinidae). Oceanic and Neritic Killer Whales (ozeanische und neritische Killerwale): Solche Populationen sind beispielsweise an der amerikanischen. Der Kleine Schwertwal (Pseudorca crassidens), auch bekannt als Unechter oder Schwarzer Schwertwal, ist eine Art der Delfine (Delphinidae) und der einzige rezente Vertreter der Gattung Pseudorca. Er ähnelt dem Orca in Form und Proportionen, ist aber einfarbig schwarz und First Record of Predation on False Killer Whales (Pseudorca crassidens) by. Worttrennung: kill·er whale, Plural: kill·er whales. Aussprache: IPA: [ ] Hörbeispiele: —. Bedeutungen: [1] Zoologie: Killerwal, Großer Schwertwal (​Orcinus orca). Many translated example sentences containing "killer whale" – German-English dictionary and search engine for German translations. Many translated example sentences containing "orca whale" – German-English dictionary and search engine for German translations. Killer whales, also known as orcas, produce a large number of sounds, such as whistling or clicks for echolocation.

Killer Wahle

Many translated example sentences containing "killer whale" – German-English dictionary and search engine for German translations. Many translated example sentences containing "orca whale" – German-English dictionary and search engine for German translations. Worttrennung: kill·er whale, Plural: kill·er whales. Aussprache: IPA: [ ] Hörbeispiele: —. Bedeutungen: [1] Zoologie: Killerwal, Großer Schwertwal (​Orcinus orca).

Killer Wahle - Inhaltsverzeichnis

In: Science. Worthy, Pamela K.

Killer Wahle Natural history Video

Killer Whales Hunt Sea Lions - Trials Of Life - BBC Earth Erkennbar wurde die Geburt anhand eines sich ausbreitenden Blutflecks und eines Paypal Promo Code Plazentadas abgetrieben wurde. Slot Gaming Companies Hauptinselpopulation zählt zwischen und Individuen und nutzt ein Gebiet um die Hauptinseln Hawaiis, das bis zu Kilometer von der Küste entfernt ist. Grindwale Globicephala. There are shows with sea-lions, killer whalesdolphins, the tunnel of the sharks, pools where children can stroke Was Ist Paypal, entertainment workshops for the younger ones, and the Marine Museum for Faust Free Play Slot older, …. Pindeo, A. Schwertwale können manchmal erfolgreich alte oder sehr junge Finnwale attackieren.

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Incredible Footage of Killer Whales Playing Underwater Ergebnisse: Sizzling Hot Deluxe Casino Game Seither sind Schwertwale beliebte Tiere in Delfinarienwo sie aufgrund ihrer Intelligenz Kunststücke lernen und vorführen. In: Genome Research. Der Kleine Schwertwal ist ein Spitzenprädator und wird generell als eher selten angesehen, selbst in den Regionen mit den höchsten Bestandsdichten. Afen Schpile Wörterbücher. Sie sind jedoch vergleichsweise selten im Vergleich zu den bekannteren Arten der Delfine. Versteckte Kategorie: Wikipedia:Überarbeiten. Killerwalen spezialisiert.

Killer Wahle Navigationsmenü

Juni ; abgerufen am Registrieren Sie sich für weitere Beispiele sehen Es ist einfach und kostenlos Registrieren Einloggen. Der Schwertwal ist ein Spitzenprädator. Das Brustbein selbst besteht aus American Poker 2 Online Spielen Kostenlos Teilen, die mit dem Alter zunehmend verwachsen. Palacios, Bruce R. Schwertwale bewegen sich meist in Gruppen: Mammal-eaters beobachtet man meist in Gruppen von weniger als Spiele Oline Exemplaren, Coastal Fish-eaters treten üblicherweise in 5—50 Individuen umfassenden Gruppen auf.

Killer Wahle Navigation menu Video

Incredible Footage of Killer Whales Playing Underwater Killer Wahle

Infanticide , once thought to occur only in captive killer whales, was observed in wild populations by researchers off British Columbia on December 2, In this incident, an adult male killed the calf of a female within the same pod, with the adult male's mother also joining in the assault.

It is theorized that the male killed the young calf in order to mate with its mother something that occurs in other carnivore species , while the male's mother supported the breeding opportunity for her son.

The attack ended when the calf's mother struck and injured the attacking male. Such behaviour matches that of many smaller dolphin species, such as the bottlenose dolphin.

In , the IUCN International Union for Conservation of Nature changed its assessment of the killer whale's conservation status from conservation dependent to data deficient , recognizing that one or more killer whale types may actually be separate, endangered species.

Like other animals at the highest trophic levels , the killer whale is particularly at risk of poisoning from bioaccumulation of toxins, including Polychlorinated biphenyls PCBs.

When food is scarce, killer whales metabolize blubber for energy, which increases pollutant concentrations in their blood. In the Pacific Northwest , wild salmon stocks, a main resident food source, have declined dramatically in recent years.

In , the United States government listed the southern resident community as an endangered population under the Endangered Species Act. They do not breed outside of their community, which was once estimated at around animals and later shrank to around These deaths can be attributed to declines in Chinook salmon.

Scientist Ken Balcomb has extensively studied killer whales since ; he is the research biologist responsible for discovering U.

Navy sonar may harm killer whales. The whales seemed "agitated and were moving haphazardly, attempting to lift their heads free of the water" to escape the sound of the sonars.

The sound originated from a U. Navy frigate 12 miles 19 kilometres distant, Balcomb said. Three years prior to Balcomb's discovery, research in the Bahamas showed 14 beaked whales washed up on the shore.

These whales were beached on the day U. Navy destroyers were activated into sonar exercise. These six dead whales were studied, and CAT scans of two of the whale heads showed hemorrhaging around the brain and the ears, which is consistent with decompression sickness.

Another conservation concern was made public in September when the Canadian government decided it was not necessary to enforce further protections including the Species at Risk Act in place to protect endangered animals along their habitats for killer whales aside from the laws already in place.

In response to this decision, six environmental groups sued the federal government, claiming killer whales were facing many threats on the British Columbia Coast and the federal government did nothing to protect them from these threats.

Underwater noise from shipping, drilling, and other human activities is a significant concern in some key killer whale habitats, including Johnstone Strait and Haro Strait.

Killer whales also avoided the surrounding waters. Eleven members about half of one resident pod disappeared in the following year. The spill damaged salmon and other prey populations, which in turn damaged local killer whales.

By , scientists estimated the AT1 transient population considered part of a larger population of transients , numbered only seven individuals and had not reproduced since the spill.

This population is expected to die out. A study published in Science found that global killer whale populations are poised to dramatically decline due to exposure to toxic chemical and PCB pollution.

The indigenous peoples of the Pacific Northwest Coast feature killer whales throughout their art , history, spirituality and religion.

The Haida regarded killer whales as the most powerful animals in the ocean, and their mythology tells of killer whales living in houses and towns under the sea.

According to these myths, they took on human form when submerged, and humans who drowned went to live with them. The Maritime Archaic people of Newfoundland also had great respect for killer whales, as evidenced by stone carvings found in a 4,year-old burial at the Port au Choix Archaeological Site.

In the tales and beliefs of the Siberian Yupik people, killer whales are said to appear as wolves in winter, and wolves as killer whales in summer.

In Western cultures , killer whales were historically feared as dangerous, savage predators. Of the very few confirmed attacks on humans by wild killer whales, none have been fatal.

In the s, a surfer in California was bitten, and in , a boy in Alaska who was splashing in a region frequented by harbour seals was bumped by a killer whale that apparently misidentified him as prey.

Competition with fishermen also led to killer whales being regarded as pests. In the waters of the Pacific Northwest and Iceland , the shooting of killer whales was accepted and even encouraged by governments.

Navy claimed to have deliberately killed hundreds of killer whales in Icelandic waters in with machine guns, rockets, and depth charges.

From July to October there were at least forty reliable reports of orcas attacking boats off the Atlantic coast of Portugal and Spain, unusual and unprecedented behaviour.

The nudging, biting and ramming attacks, on medium-size sailing boats sailing at moderate speed, concentrated on the rudder, with some impacts on the hull.

A small group of orcas are believed to be responsible, with three juveniles which have been named black Gladis, white Gladis and grey Gladis, identified as present in most attacks.

While the incidents were terrifying, no people were injured. The Portuguese coastguard banned small sailing vessels from a region where several incidents had been reported.

It is thought that the behaviour is playful, rather than aggressive or vengeful. Western attitudes towards killer whales have changed dramatically in recent decades.

In the mids and early s, killer whales came to much greater public and scientific awareness, starting with the first live-capture and display of a killer whale known as Moby Doll , a resident harpooned off Saturna Island in To the surprise of those who saw him, Moby Doll was a docile, non-aggressive whale who made no attempts to attack humans.

Between and , 50 killer whales from the Pacific Northwest were captured for display in aquaria , and public interest in the animals grew.

In the s, research pioneered by Michael Bigg led to the discovery of the species' complex social structure, its use of vocal communication, and its extraordinarily stable mother—offspring bonds.

Through photo-identification techniques, individuals were named and tracked over decades. Bigg's techniques also revealed the Pacific Northwest population was in the low hundreds rather than the thousands that had been previously assumed.

The public's growing appreciation also led to growing opposition to whale—keeping in aquarium. Only one whale has been taken in North American waters since In recent years, the extent of the public's interest in killer whales has manifested itself in several high-profile efforts surrounding individuals.

Following the success of the film Free Willy , the movie's captive star Keiko was returned to the coast of his native Iceland in She became the first whale to be successfully reintegrated into a wild pod after human intervention, crystallizing decades of research into the vocal behaviour and social structure of the region's killer whales.

However, his case was marked by controversy about whether and how to intervene, and in , Luna was killed by a boat propeller. The earlier of known records of commercial hunting of killer whales date to the 18th century in Japan.

During the 19th and early 20th centuries, the global whaling industry caught immense numbers of baleen and sperm whales, but largely ignored killer whales because of their limited amounts of recoverable oil , their smaller populations, and the difficulty of taking them.

Between and , Japan took 1, killer whales although the Ministry of the Environment claims that there had been domestic catches of about 1, whales between late s to s [] and Norway took Other than commercial hunts, killer whales were hunted along Japanese coasts out of public concern for potential conflicts with fisheries.

Such cases include a semi-resident male-female pair in Akashi Strait and Harimanada being killed in the Seto Inland Sea in , [] [] the killing of five whales from a pod of 11 members that swam into Tokyo Bay in , [] and a catch record in southern Taiwan in the s.

Killer whales have helped humans hunting other whales. Whalers more often considered them a nuisance, however, as orcas would gather to scavenge meat from the whalers' catch.

Whale watching continues to increase in popularity, but may have some problematic impacts on killer whales. Exposure to exhaust gasses from large amounts of vessel traffic are causing concern for the overall health of the 75 remaining southern resident killer whales SRKWs left as of early Air pollutants that bind with exhaust fumes are responsible for the activation of the cytochrome P 1A gene family.

A direct correlation between activation of this gene and the air pollutants can not be made because there are other known factors that will induce the same gene.

Vessels can have either wet or dry exhaust systems, with wet exhaust systems leaving more pollutants in the water due to various gas solubility.

As a response to this, in boats off the British Columbia coast now have a minimum approach distance of metres compared to the previous metres.

This new rule complements Washington State's minimum approach zone of metres that has been in effect since If a whale approaches a vessel it must be placed in neutral until the whale passes.

The World Health Organization has set air quality standards in an effort to control the emissions produced by these vessels. The killer whale's intelligence , trainability, striking appearance, playfulness in captivity and sheer size have made it a popular exhibit at aquaria and aquatic theme parks.

From to , 55 whales were taken from the wild in Iceland, 19 from Japan, and three from Argentina.

These figures exclude animals that died during capture. Organizations such as World Animal Protection and the Whale and Dolphin Conservation campaign against the practice of keeping them in captivity.

Captives have vastly reduced life expectancies, on average only living into their 20s. Wild males who survive infancy live 31 years on average, and up to 50—60 years.

Critics claim captive life is stressful due to these factors and the requirement to perform circus tricks that are not part of wild killer whale behaviour, see above.

A study coauthored by staff at SeaWorld and the Minnesota Zoo indicates that there is no significant difference in survivorship between free-ranging and captive killer whales.

The authors speculate about the future utility of studying captive populations for the purposes of understanding orca biology and the implications of such research of captive animals in the overall health of both wild and marine park populations.

As of March , SeaWorld has announced that they will be ending their orca breeding program and their theatrical shows.

They previously announced, in November , that the shows would be coming to an end in San Diego but it is now to happen in both Orlando and San Antonio as well.

From Wikipedia, the free encyclopedia. For other uses, see Orca disambiguation. Largest living species of dolphin.

Size compared to a 1. Conservation status. Linnaeus , [4]. Orcinus citoniensis fossil, an extinct species of the same genus, Museo Capellini in Bologna.

Modern orca skeleton, Naturalis , Leiden. A killer whale leaps out of the water when swimming—a behaviour known as porpoising, in Hood Canal.

Tail-slapping in Vestfjorden , Norway. Resident fish-eating killer whales: The curved dorsal fins are typical of resident females. Comparison of the size of an average orca and an average great white shark.

Multimedia relating to the orca. Killer whale calls. Killer whale calls at a distance. Vocalizations of a killer whale.

See also: Whale sound. Main article: Cetacean intelligence. See also: Animal worship. Main article: Killer whale attacks on humans. See also: Killer whales in popular culture.

Play media. Main article: Whaling. Main article: Captive killer whales. Cetaceans portal Mammals portal Marine life portal Oceans portal.

In Wilson, D. M eds. Johns Hopkins University Press. Archived from the original on April 27, Retrieved April 28, Retrieved February 15, Integrated Taxonomic Information System.

Retrieved March 9, Systema naturae per regna tria naturae, secundum classes, ordines, genera, species, cum characteribus, differentiis, synonymis, locis.

Tomus I in Latin. Laurentii Salvii. Archived from the original on March 25, Retrieved January 14, Mary's Church, Greifswald.

Marine Mammal Science. Journal of Zoological Systematics and Evolutionary Research. National Wildlife Federation.

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Courier Dover Publications. Retrieved January 26, Journal of Cetacean Research and Management. Archived PDF from the original on April 27, Retrieved January 9, Biological Reviews.

Canadian Journal of Zoology. Marine mammals: evolutionary biology. Academic Press. UBC Press, Vancouver. Animal Behaviour. Archived from the original on September 15, Retrieved February 4, Nanaimo Daily News.

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Adderly, T. Safford, K. Hewlett Spencer, T. Gornall, 3rd, and T. Poulter Respiratory and cardiac activity of killer whales Archived June 11, , at the Wayback Machine.

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Advances in Veterinary Science and Comparative Medicine. Here's why". March 25, Archived from the original on June 6, Retrieved May 31, Archived from the original on January 3, Retrieved January 3, Retrieved September 11, September 29, Dozens of killer whales have been kept in captivity and trained as performers, a practice that in the 21st century was increasingly viewed as unethical.

The largest males attain a length of more than 10 metres Males also have proportionally larger appendages, with flippers up to 2 metres 6.

Flipper length among females is 11—13 percent of body length. The dorsal fin of older males is very tall up to 1.

The skull is a metre or more in length and holds the largest brain of all the dolphins, averaging 5. The muscles that close the mouth are enormous, and within the jaws is a set of more than 40 interlocking curved teeth.

Most of the teeth are large, measuring about 10 cm 4 inches long and 4 cm 1. The killer whale has a patchy distribution in all oceans, from the polar ice caps to the Equator , where large prey such as tuna , salmon , and seals are abundant.

Other food sources are squids , sea lions , penguins , whales , and porpoises. In the North Pacific several populations live along the Alaskan coast, in the intracoastal waterways of British Columbia and Washington , and off the coast of Baja California.

Killer whales live in small groups, usually called pods, that number fewer than 40 individuals each.

Resident pods and transient pods have been differentiated within the populations of British Columbia and Washington. Sound production and diet differ between them, with resident pods that is, those that inhabit Puget Sound and nearby coastal waters eating fish primarily salmon and transients that is, those that range over larger areas of coastal waters eating other cetaceans, seabirds, and seals.

Echolocation is used by killer whales in feeding and communication. Known to be highly intelligent , killer whales are among the few nonhuman animals to be able to recognize themselves in a mirror.

Killer whales are also one of the small number of species—along with human beings Homo sapiens , short-finned pilot whales Globicephala macrorhynchus , false killer whales Pseudorca crassidens , belugas Delphinapterus leucas , and narwhals Monodon monoceros —that experience menopause that is, the stoppage of ovulation prior to the end of their natural lives.

The circumstances under which menopause evolved in killer whales are a matter of debate, but it may have emerged in response to increases in the mortality of offspring from older generations during times when mothers and their daughters bred simultaneously.

Some scientists argue that younger females in the pod tend to focus on the success of their own offspring and may be more competitive for food resources than older females see competition.

Killer whale pods are extended families that have matriarchal hierarchies see also dominance hierarchy.

The older females, tending to focus on the success of the overall pod, may be more willing to share food with the rest of the pod, thereby reducing the amount of food that could be given to their own offspring.

The evolutionary record of the genus Orcinus is scanty. The earliest fossil identified as a killer whale is O. This small mammal was about 4 metres long This implies that the ancestors of the present-day killer whale diverged from other cetaceans during the Miocene Epoch 23 million to 5.

Although the taxonomy of the killer whale is clear at the genus level and at the family level Delphinidae , relationships between killer whales and other toothed whales suborder Odontoceti are ambiguous.

Killer whales are sometimes assigned to one or another subfamily of the Delphinidae: Orcininae killer whales and kin or Globicephalinae pilot whales and kin.

More than 20 species names have been applied to the killer whale, but a consensus now recognizes only O. Evidence suggests that O.

Based on genetic analysis and studies of body size and tooth wear, scientists contend that two separate populations with distinct feeding habits and morphological characteristics have arisen.

Alle Mitglieder eines Klans zeichnen sich durch ein Kane V Kane Lautrepertoire aus, was auf deren Ursprung und Aufspaltung aus einer Mutterlinie hinweist. SeptemberS. Gelegentlich verweilen Schwertwale auch bewegungslos an der Wasseroberfläche. Neben der direkten Fischerei und der Tötung der Tiere als Fischereikonkurrenten gibt es weitere Bedrohungen der Tiere durch Umweltbelastungen und Umweltverschmutzungen. Thewissen Hrsg. Der Schädel des Schwertwals, insbesondere Book Of Ra Lowen Play Oberkieferknochensind sehr breit und kräftig Mobile Apps Review.

Through photo-identification techniques, individuals were named and tracked over decades. Bigg's techniques also revealed the Pacific Northwest population was in the low hundreds rather than the thousands that had been previously assumed.

The public's growing appreciation also led to growing opposition to whale—keeping in aquarium. Only one whale has been taken in North American waters since In recent years, the extent of the public's interest in killer whales has manifested itself in several high-profile efforts surrounding individuals.

Following the success of the film Free Willy , the movie's captive star Keiko was returned to the coast of his native Iceland in She became the first whale to be successfully reintegrated into a wild pod after human intervention, crystallizing decades of research into the vocal behaviour and social structure of the region's killer whales.

However, his case was marked by controversy about whether and how to intervene, and in , Luna was killed by a boat propeller.

The earlier of known records of commercial hunting of killer whales date to the 18th century in Japan. During the 19th and early 20th centuries, the global whaling industry caught immense numbers of baleen and sperm whales, but largely ignored killer whales because of their limited amounts of recoverable oil , their smaller populations, and the difficulty of taking them.

Between and , Japan took 1, killer whales although the Ministry of the Environment claims that there had been domestic catches of about 1, whales between late s to s [] and Norway took Other than commercial hunts, killer whales were hunted along Japanese coasts out of public concern for potential conflicts with fisheries.

Such cases include a semi-resident male-female pair in Akashi Strait and Harimanada being killed in the Seto Inland Sea in , [] [] the killing of five whales from a pod of 11 members that swam into Tokyo Bay in , [] and a catch record in southern Taiwan in the s.

Killer whales have helped humans hunting other whales. Whalers more often considered them a nuisance, however, as orcas would gather to scavenge meat from the whalers' catch.

Whale watching continues to increase in popularity, but may have some problematic impacts on killer whales. Exposure to exhaust gasses from large amounts of vessel traffic are causing concern for the overall health of the 75 remaining southern resident killer whales SRKWs left as of early Air pollutants that bind with exhaust fumes are responsible for the activation of the cytochrome P 1A gene family.

A direct correlation between activation of this gene and the air pollutants can not be made because there are other known factors that will induce the same gene.

Vessels can have either wet or dry exhaust systems, with wet exhaust systems leaving more pollutants in the water due to various gas solubility.

As a response to this, in boats off the British Columbia coast now have a minimum approach distance of metres compared to the previous metres.

This new rule complements Washington State's minimum approach zone of metres that has been in effect since If a whale approaches a vessel it must be placed in neutral until the whale passes.

The World Health Organization has set air quality standards in an effort to control the emissions produced by these vessels. The killer whale's intelligence , trainability, striking appearance, playfulness in captivity and sheer size have made it a popular exhibit at aquaria and aquatic theme parks.

From to , 55 whales were taken from the wild in Iceland, 19 from Japan, and three from Argentina. These figures exclude animals that died during capture.

Organizations such as World Animal Protection and the Whale and Dolphin Conservation campaign against the practice of keeping them in captivity.

Captives have vastly reduced life expectancies, on average only living into their 20s. Wild males who survive infancy live 31 years on average, and up to 50—60 years.

Critics claim captive life is stressful due to these factors and the requirement to perform circus tricks that are not part of wild killer whale behaviour, see above.

A study coauthored by staff at SeaWorld and the Minnesota Zoo indicates that there is no significant difference in survivorship between free-ranging and captive killer whales.

The authors speculate about the future utility of studying captive populations for the purposes of understanding orca biology and the implications of such research of captive animals in the overall health of both wild and marine park populations.

As of March , SeaWorld has announced that they will be ending their orca breeding program and their theatrical shows. They previously announced, in November , that the shows would be coming to an end in San Diego but it is now to happen in both Orlando and San Antonio as well.

From Wikipedia, the free encyclopedia. For other uses, see Orca disambiguation. Largest living species of dolphin. Size compared to a 1. Conservation status.

Linnaeus , [4]. Orcinus citoniensis fossil, an extinct species of the same genus, Museo Capellini in Bologna. Modern orca skeleton, Naturalis , Leiden.

A killer whale leaps out of the water when swimming—a behaviour known as porpoising, in Hood Canal. Tail-slapping in Vestfjorden , Norway.

Resident fish-eating killer whales: The curved dorsal fins are typical of resident females. Comparison of the size of an average orca and an average great white shark.

Multimedia relating to the orca. Killer whale calls. Killer whale calls at a distance. Vocalizations of a killer whale.

See also: Whale sound. Main article: Cetacean intelligence. See also: Animal worship. Main article: Killer whale attacks on humans.

See also: Killer whales in popular culture. Play media. Main article: Whaling. Main article: Captive killer whales. Cetaceans portal Mammals portal Marine life portal Oceans portal.

In Wilson, D. M eds. Johns Hopkins University Press. Archived from the original on April 27, Retrieved April 28, Retrieved February 15, Integrated Taxonomic Information System.

Retrieved March 9, Systema naturae per regna tria naturae, secundum classes, ordines, genera, species, cum characteribus, differentiis, synonymis, locis.

Tomus I in Latin. Laurentii Salvii. Archived from the original on March 25, Retrieved January 14, Mary's Church, Greifswald.

Marine Mammal Science. Journal of Zoological Systematics and Evolutionary Research. National Wildlife Federation.

Archived from the original on January 31, Retrieved July 30, Hobbs Whales, dolphins, and porpoises of the eastern North Pacific and adjacent Arctic waters: a guide to their identification , p.

Courier Dover Publications. Retrieved January 26, Journal of Cetacean Research and Management. Archived PDF from the original on April 27, Retrieved January 9, Biological Reviews.

Canadian Journal of Zoology. Marine mammals: evolutionary biology. Academic Press. UBC Press, Vancouver. Animal Behaviour.

Archived from the original on September 15, Retrieved February 4, Nanaimo Daily News. Archived from the original on March 1, Retrieved December 4, Archived from the original PDF on March 22, Archived from the original on October 13, Retrieved February 5, NOAA Fisheries.

Archived from the original on July 9, Retrieved August 15, Population structure and genetic variability in northeastern Pacific killer whales: Towards an assessment of population viability.

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Killer whales live in small groups, usually called pods, that number fewer than 40 individuals each. Resident pods and transient pods have been differentiated within the populations of British Columbia and Washington.

Sound production and diet differ between them, with resident pods that is, those that inhabit Puget Sound and nearby coastal waters eating fish primarily salmon and transients that is, those that range over larger areas of coastal waters eating other cetaceans, seabirds, and seals.

Echolocation is used by killer whales in feeding and communication. Known to be highly intelligent , killer whales are among the few nonhuman animals to be able to recognize themselves in a mirror.

Killer whales are also one of the small number of species—along with human beings Homo sapiens , short-finned pilot whales Globicephala macrorhynchus , false killer whales Pseudorca crassidens , belugas Delphinapterus leucas , and narwhals Monodon monoceros —that experience menopause that is, the stoppage of ovulation prior to the end of their natural lives.

The circumstances under which menopause evolved in killer whales are a matter of debate, but it may have emerged in response to increases in the mortality of offspring from older generations during times when mothers and their daughters bred simultaneously.

Some scientists argue that younger females in the pod tend to focus on the success of their own offspring and may be more competitive for food resources than older females see competition.

Killer whale pods are extended families that have matriarchal hierarchies see also dominance hierarchy. The older females, tending to focus on the success of the overall pod, may be more willing to share food with the rest of the pod, thereby reducing the amount of food that could be given to their own offspring.

The evolutionary record of the genus Orcinus is scanty. The earliest fossil identified as a killer whale is O. This small mammal was about 4 metres long This implies that the ancestors of the present-day killer whale diverged from other cetaceans during the Miocene Epoch 23 million to 5.

Although the taxonomy of the killer whale is clear at the genus level and at the family level Delphinidae , relationships between killer whales and other toothed whales suborder Odontoceti are ambiguous.

Killer whales are sometimes assigned to one or another subfamily of the Delphinidae: Orcininae killer whales and kin or Globicephalinae pilot whales and kin.

More than 20 species names have been applied to the killer whale, but a consensus now recognizes only O. Evidence suggests that O.

Based on genetic analysis and studies of body size and tooth wear, scientists contend that two separate populations with distinct feeding habits and morphological characteristics have arisen.

One population , characterized by relatively small individuals with a maximum length of 6. In contrast, the other population, characterized by larger individuals that can grow to a length of 8.

There is evidence that killer whale speciation may also be occurring in the North Pacific, where as many as three genetically divergent groups exist with significantly different dispersal patterns, calls, social structure, and diets.

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The Killer Whale Who Changed the World | Leiren-Young, Mark | ISBN: | Kostenloser Versand für alle Bücher mit Versand und Verkauf duch. Übersetzung im Kontext von „false killer whale“ in Englisch-Deutsch von Reverso Context. The orca, or killer whale as it is commonly known, is the top marine predator and possibly the most widespread vertebrate on Earth. It is found in all the world's. Killer Wahle Navy destroyers were activated into sonar exercise. Asahi Shimbun in Japanese. The number of species, although still large, has declined Paly Pal. Commerson's dolphin C. Killer whales in many areas may prey on cormorants and gulls. Laurentii Define Donkey. Archived from the original on January 9, Another conservation concern was made public in September when the Canadian government decided it Fc Schaffhausen Tabelle not necessary to enforce further protections including the Species at Risk Act in place to protect endangered animals along their habitats for Wo Liegt Was whales aside from the laws already in place.

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