Dolphins can stay under water for 8 minutes and can dive to a depth of 500 feet. There are many different sounds that dolphins make. They make clicks, squeaks, and screeches and bubble streams that are often accompanied by a squeak. One of their eyes can move up and one can look to the side. A lady in the Bahamas studies dolphins and she is trying to figure out how the dolphins communicate.
People say that dolphins are among the smartest animals in the world.
Echolocation To a dolphin, echoes are as important as fins. The sound is produced in nasal passages. Sound travels at 1115 ft. per second. The sounds sent out are generally high frequency, over 200,000 cycles per second. They need echolocation in murky waters, because they cannot see very well.