They use very high pitched sounds to locate objects in the water. By listening for the echo of the sound, Dolphins can determine the location of any objects nearby. Scientists have found that dolphins are very smart and can learn quickly. Some scientists even believe that Dolphins could be taught a language in order to communicate with people. That is why the Dolphin is considered to be nearly as intelligent as some primates.
Dolphins have one baby at a time.
There are over 32 different species of Dolphins.