Newly discovered oddball hippo-sized marine mammal had a toothy vacuum mouth
The identification of a new species belonging to the marine mammal group Desmostylia has intensified the rare animal's brief mysterious journey through prehistoric time, finds a new study.

Ounalashkastylus belongs to the only extinct group of marine mammals called desmostylians. Its odd tusk-teeth add more mystery to an ancient collection of weirdo water-lovers.