North American Wild Ox
Puzzle 17 of Alliteration Piece of Cake Pack
Question is: North American Wild Ox
and the answer is: BUFFALO
Word Meaning:
BUFFALO — An animal from the subtribe Bubalina, also known as true buffalos, such as the Cape buffalo, Syncerus caffer, or the water buffalo, Bubalus bubalis.
Definitions from Wiktionary.