An Extinct Hooved Mammal That Looked Like a Hippo
Puzzle 18 of Things to be Grateful For Hard Pack
Question is: An Extinct Hooved Mammal That Looked Like a Hippo
and the answer is: TOXODON
Word Meaning:
TOXODON — (paleontology) A gigantic extinct herbivorous mammal from South America, having teeth bent like a bow. It is the type of the order Toxodonta.
Definitions from Wiktionary.