Sperm whales are the largest creatures on earth that have teeth. They are as big as a bus. Sperm whales like to eat giant squid. Giant squid have eyes the size of basket balls.

Sperm whales dive to the deep ocean to search for their prey. They can dive deeper than one mile. The whales eat the squid but they will still have suction cup marks on their skin.

Before they dive down deep, sperm whales take a large breath of air. They can hold their breath for an hour and a half.