1. Dolphins have specially adapted eyes, which means they can see very clearly out of the water and under the water. They have almost no sense of smell.
2. In the wild, Dolphins normally sleep with only one side of the brain and leave the other side active so they can still swim, breathe and be aware of predators.
3. Dolphins can make many different sounds. They communicate mainly with various combinations of Clicks, Whistles and Pulses.
