A few dolphin species also have yellow, tan, and pink. Some dolphins have spots or stripes. A dolphin's face muscles are below a thick layer of blubber. The jaw bones, blubber, and skin make a dolphin's face. Even when it is afraid or angry, a dolphin looks like it is smiling.
Dolphins have a beak-like nose and sharp teeth to eat fish and other foods.
A family member of the dolphin mother will help the mother dolphin have its baby dolphin. The largest dolphins are the bottlenose and the orca. Breathing Dolphins need oxygen to live. But dolphins are able to send oxygen-rich blood to the brain and heart. When dolphins dive, they store oxygen in their blood, muscles, and small blood vessels called retia.