It's a fact; DOLPHINS.
Dolphins leap out of the water to conserve energy - it is easier to move through air than water.
Dolphins are often thought to be warm water animals but they inhabit all the world's oceans including the Polar regions.
Some species of freshwater dolphins are blind and rely on sonar for navigation.
Dolphin babies, unlike other mammals, are born tail-first.
The dolphin's sense of smell is limited.
A mother dolphin remains with her calf for two to three years.
The dorsal fin of a dolphin is as unique as a human face.
In the wild the average age of a dolphin is 17 years but they can live up to 50 years.
Some dolphins need to breathe every 20 seconds while others can survive without air for up to 30 minutes.
In a single day an adult dolphin may eat 30lbs of fish.