One Of Earths Most Inteligent Animals

Dolphins are one of earths most intelligent animals, they have been known to use ultrasonic sound for echolocation. Membership in their pods (see post "Interacting" and read about schools and pods) is not rigid; interchange is common. However, the cetaceans can establish strong bonds with each other, this leads to them staying with injured and ill individuals.

They're Smarter Than We Think

Did you know that some dolphins teach their children to use tools (sponges to cover their snouts to protect them while foraging)? This knowledge is mostly transferred from mother to daughter. This is not genetic, it is taught.