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Antartica.A orca ou baleia assassina (Orcinus orca) eh o membro de maior porte da familia Delphinidae (ordem dos cetaceos) e um predador versatil, podendo comer peixes, moluscos, aves, tartarugas, ainda que, cacando em grupo, consigam capturar presas de tamanho maior, incluindo morsas e outras baleias. Apesar da designacao baleia assassina, nao eh, na verdade, uma baleia mas sim um golfinho. O nome provem da alteracao da expressao assassina de baleias ja que cacam outros cetaceos jovens. Esta, portanto, no topo da cadeia alimentar oceanica. Pode chegar a pesar nove toneladas./The Orca or Killer Whale (Orcinus orca) is the largest species of the oceanic dolphin family (Delphinidae). It is found in all the world's oceans, from the frigid Arctic and Antarctic regions to warm, tropical seas..Orcas are versatile predators with some populations feeding mostly on fish and others on marine mammals, including sea lions, seals, and large whales. There are up to five distinct Orca types, some of which may be separate subspecies or even species. Research in recent decades indicates a strong correlation between the diet of an Orca population and its social structure. Some fish-eating populations are composed of matrilineal family groups which are the most stable of any animal species..Foto: Christiana Carvalho/Argosfoto

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http://www.argosfoto.com.br
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Antartida
Antartica.A orca ou baleia assassina (Orcinus orca) eh o membro de maior porte da familia Delphinidae (ordem dos cetaceos) e um predador versatil, podendo comer peixes, moluscos, aves, tartarugas, ainda que, cacando em grupo, consigam capturar presas de tamanho maior, incluindo morsas e outras baleias. Apesar da designacao baleia assassina, nao eh, na verdade, uma baleia mas sim um golfinho. O nome provem da alteracao da expressao assassina de baleias ja que cacam outros cetaceos jovens. Esta, portanto, no topo da cadeia alimentar oceanica. Pode chegar a pesar nove toneladas./The Orca or Killer Whale (Orcinus orca) is the largest species of the oceanic dolphin family (Delphinidae). It is found in all the world's oceans, from the frigid Arctic and Antarctic regions to warm, tropical seas..Orcas are versatile predators with some populations feeding mostly on fish and others on marine mammals, including sea lions, seals, and large whales. There are up to five distinct Orca types, some of which may be separate subspecies or even species. Research in recent decades indicates a strong correlation between the diet of an Orca population and its social structure. Some fish-eating populations are composed of matrilineal family groups which are the most stable of any animal species..Foto: Christiana Carvalho/Argosfoto