What, if anything, are whales?
Mysticeti Odontoceti others Tylopoda Ancodonta Suina Tragulidae Pecora Cetacea Suiformes Ruminantia Artiodactyla others
Ballen whale Toothed whale others Camel Hippopotamus Pig Mouse deer Pecorans Whales Pig-like Ruminants Even-toed ungulates others
George Gaylord Simpson ( ) Because I said so! (1945)
Balaenoptera musculus Blue whale Baleen whales
Physeter macrocephalus Sperm whale Phocoena phocoena Harbor porpoise Orcinus orca Killer whale Toothed whales
Tragulus napu Larger Malay Mouse Deer Tragulus javanicus Lesser Malay Mouse Deer Chevrotains
Giraffa camelopardalis Giraffe Oreamnos americanus Mountain goat Antilocapra americana Pronghorn
Pecari tajacu Collared peccary Sus barbatus Bearded pig
Hippopotamus amphibius Hippopotamus
Camelus bactrianus Bactrian camel Lama glama Llama
Aishwarya Rai Bachchan
Graur D, Higgins DG Molecular evidence for the inclusion of cetaceans within the order Artiodactyla. Mol. Biol. Evol. 11: