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Physeter
genus, whales & dolphins
Nucleotide Protein
Caperea
Balaena
Hippopotamus
genus, even-toed ungulates & whales
Ancodonta
infraorder, even-toed ungulates & whales
Megaptera
Balaenoptera
Balaenopteridae
(rorquals), family, whales & dolphins
Mysticeti
(baleen whales), parvorder, whales & dolphins
Ziphius
Mesoplodon
Ziphiidae
(beaked whales), family, whales & dolphins
Hippopotamidae
family, even-toed ungulates & whales
Kogia
Physeteridae
(sperm whales), family, whales & dolphins
Delphinapterus
Monodontidae
family, whales & dolphins
Phocoenoides
Phocoenidae
(porpoises), family, whales & dolphins
Inia
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