baleen whale
whalebone whale

Among the baleen whales, the social structure seems to be based on the closed family unit.

Baleen whales were generally the main source of whale oil.

Unlike most other baleen whales, it has rarely been subject to exploitation.

The modern niche is filled by several species of sharks and the baleen whales.

In fact the baleen whales may be the most long-lived of all mammals, including man.

The sei whale looks similar to other large baleen whales.

Although they are very heavy, baleen whales are able to jump completely out of the water.

Compared to most baleen whales, gray whales are rather small, growing to be only about 45 feet long.

Another example are the embryonic teeth of baleen whales.

Baleen whales do not have teeth, except as embryos.