<Table> <Tr> <Th_colspan="2"> Killer whale Temporal range: Pliocene to recent PreЄ Є Pg </Th> </Tr> <Tr> <Td_colspan="2"> </Td> </Tr> <Tr> <Td_colspan="2"> Transient killer whales near Unimak Island, eastern Aleutian Islands, Alaska </Td> </Tr> <Tr> <Td_colspan="2"> </Td> </Tr> <Tr> <Td_colspan="2"> Size compared to an average human </Td> </Tr> <Tr> <Th_colspan="2"> Conservation status </Th> </Tr> <Tr> <Td_colspan="2"> Data Deficient (IUCN 3.1) </Td> </Tr> <Tr> <Th_colspan="2"> Scientific classification </Th> </Tr> <Tr> <Td> Kingdom: </Td> <Td> Animalia </Td> </Tr> <Tr> <Td> Phylum: </Td> <Td> Chordata </Td> </Tr> <Tr> <Td> Class: </Td> <Td> Mammalia </Td> </Tr> <Tr> <Td> Order: </Td> <Td> Artiodactyla </Td> </Tr> <Tr> <Td> Infraorder: </Td> <Td> Cetacea </Td> </Tr> <Tr> <Td> Family: </Td> <Td> Delphinidae </Td> </Tr> <Tr> <Td> Genus: </Td> <Td> Orcinus Fitzinger, 1860 </Td> </Tr> <Tr> <Td> Species: </Td> <Td> O. orca </Td> </Tr> <Tr> <Th_colspan="2"> Binomial name </Th> </Tr> <Tr> <Td_colspan="2"> Orcinus orca (Linnaeus, 1758) </Td> </Tr> <Tr> <Td_colspan="2"> </Td> </Tr> <Tr> <Td_colspan="2"> Orcinus orca range (in blue) </Td> </Tr> <Tr> <Th_colspan="2"> Synonyms </Th> </Tr> <Tr> <Td_colspan="2"> <P> Orca gladiator </P> </Td> </Tr> </Table> <Tr> <Th_colspan="2"> Killer whale Temporal range: Pliocene to recent PreЄ Є Pg </Th> </Tr>

What is the scientific name for a killer whale