Dolphins are very social animals that scientists have observed “smiling” while playing with one another. But a solitary bottlenose dolphin, known by the name Delle, has been observed near the ...

How intelligent are dolphins, and do they have to be trained to play football like a pro? Find out more about their ...

Adult bottlenose dolphins weigh between 300-1400 pounds and range from 6-13 feet in length. They are social animals, living in groups of just a few to over 100 dolphins.