Some varieties are found only in certain areas of the world but the bottlenose, the most common dolphin, lives everywhere but the artic. There are numerous varieties of dolphins and they range from light gray to pure white to striped. Some have humps on their backs, some are sleek, and others are in between. Dolphins live in rivers, lake, oceans. Some can jump higher than twenty feet.
Bottlenoses are among the only dolphins that consistently mate with other dolphin species.
Calves are born singing, and nurse for up to thirty months. They are very attached to their mothers. Each dolphin has its own signature song and very original whistle or sound. Gestation of a bottlenose is about twelve months, and a newborn calf is three and a half feet long. Another female helps the mother with the birth, and the calf usually makes its way to the air on its own.