"Walrus tusks can grow up to 3 feet. The tusks are canine teeth and stick out from either side of the animal's mouth. Walruses use their tusks to break through ice, and to assist in climbing out of the water and onto the ice. The animals also use their tusks to defend themselves from larger predators and to establish dominance and a hierarchy among walruses,..." LiveScience
And God created .....every living creature that moveth, which the waters brought forth abundantly, after their kind, and every winged fowl after his kind: and God saw that it was good.
Genesis 1:21