A theory says the
original whales were the mesonyids which lived in North America 50 million years ago.
Slowly the wolf-like animal became accustomed to the water searching for more food. It
slowly became the whale. There are 2 types of whales.
Baleen Whales:
Toothed:
Whales that have a straining like material making
them capable of straining out larger creatures while letting in plankton.
Whales that have
teeth and usually eat small fish.