What is a cetacean?
Whales, dolphins and porpoises are warm blooded, air breathing marine mammals which give birth to live young. 'Cetacean' is the scientific name (of the Order Cetacea) which refers to whales, dolphins and porpoises.
Whales, dolphins, and porpoises are fascinating to many people. It may be because of their size or because of their activities that can seem so playful or because of the attention that has been focused on human threats to these animals. The whales, dolphins, and porpoises are in an order known as cetaceans. These deep sea creatures are mammals just like humans. They breath air. They are warmblooded. They bear live young called calves which are nursed by their mothers.