Whales and Dolphins both breath from a blowhole located at the top of their head. Whales and dolpins are mammals. They are mammals because they have lungs not gills, they have hair not scales, and they give live birth to their young. Whales can grow up to 100 ft. or more in length.
Whales live and travel in families called pods.
These pods vary in numbers and consist of family members and family friends. Whales live in these families their whole life. Group living is safer when other whales or sharks attack. It also makes it easier to find food. Whales are always migrating.