Adult bottlenose dolphins range from two to four meters or six to thirteen feet.
Most dolphins live in the ocean, but there are some species which live in rivers.
Besides the common predators like big sharks and occasionally killer whales, humans are the top dolphin killers.
The scientific name for the striped dolphin is Stenella coeruleoalba.
According to some marine biologists that have studied dolphins, the life span of a dolphin is up to 20 years old.
The hole on the top of the dolphin is the blowhole. Dolphins breathe through their blowhole.