Bottlenose Dolphin - stock video

In their head they have structures able to transmit sonar sounds that echo back to their heads. They are able to determine many things precisely such as the type and size of fish or object as well as its proximity. They are social creatures that live in large pods and their numbers reach into the thousands per group. As mammals, they nurse and provide milk to their young typically for one to two years depending on the length of time it takes to be able to survive on their own.