A group of mammals that includes cetaceans and sirenians. They live a fully aquatic life in oceans and shallow waters.
How are cetosirenians ungulates? Do they have hooves: no. Do they walk on land: no. Do they have fur on their bodies: no. This is one of those eternal questions we shall never know the answer to! ;)
by I don't say "bleh bleh-bleh"! August 6, 2020