What, if anything, are whales?What, if anything, are whales?

Mysticeti

Odontocetiothers

Tylopoda

Ancodonta

SuinaTragulidaePecora

Cetacea

Suiformes

Ruminantia

Artiodactyla

others

Ballen whale

Toothed whale

others

Camel

Hippopotamus

Pig

Mouse deer

Pecorans

Whales

Pig-like

Ruminants

Even-toedungulates

others

George Gaylord Simpson(1902-1984)

BecauseI said so!

(1945)

Balaenoptera musculus Blue whale

Baleen whales

Physeter macrocephalusSperm whale

Phocoena phocoenaHarbor porpoise

Orcinus orcaKiller whale

Toothed whales

Tragulus napuLarger Malay Mouse Deer

Tragulus javanicus Lesser Malay Mouse Deer

Chevrotains

Giraffa camelopardalisGiraffe

Oreamnos americanusMountain goat

Antilocapra americanaPronghorn

Pecari tajacuCollared peccary

Sus barbatusBearded pig

Hippopotamus amphibiusHippopotamus

Camelus bactrianus Bactrian camel

Lama glamaLlama

Aishwarya Rai Bachchan

Graur D, Higgins DG. 1994. Molecular evidence for the inclusion of cetaceans within the order Artiodactyla. Mol. Biol. Evol. 11: 357-364.