Though its teeth were different, the ancient walrus evolved separately from O. rosmarus, an example of convergent evolution or when similar traits arise spontaneously in different animals.

Those three creatures all have unique developments when it comes to teeth. The first part of the walrus’ scientific name (Odobenus rosmarus)translates to tooth-walking, since the creatures’ enlarged ...

A California man has been fined $50,000 in Vermont for illegally importing carvings made from sperm whale teeth and walrus tusk across the U.S.-Canadian border, federal prosecutors said.

Suction-feeding technique. The walrus has evolved a specialized feeding way that allows it to efficiently extract food from hard-shelled prey. Ontocetus had four post-canine teeth, a bigger lower ...

A 13-year-old saw a skull protruding from a boulder. The fossil belonged to an ancient toothless walrus that's now named for him: Valenictus sheperdi.

Teeth found in both Norwich and Antwerp have been identified to belong to a now extinct marine carnivore from around 5.3 million years ... Ancient teeth found belong to walrus-like extinct mammal .

O. emmonsi thrived in warmer water and didn’t specialize in suction-feeding. O. posti may have tried to adapt using suction-feeding techniques, says Boisville. But they didn’t appear to adapt fast ...

Like its close kin, Ontocetus posti had a complement of teeth, including lower incisors and a large lower canine. But its heavy chin bones were fused — like those of a modern walrus.

Though its teeth were different, the ancient walrus evolved separately from O. rosmarus, an example of convergent evolution or when similar traits arise spontaneously in different animals.