Dolphins are mammal of the order of Cetacean. There are almost 40 species, ranging in size from 1.2 meters to 9.5 meters and 40 kilos and 6 tons (Orcas). They are predators
The name dolphin perhaps come from the Greek Delphis, whe means or “uterus” since the dolphins give birth to their babies, or in an other translation of Delphis it can mean “spirit of the sea”!….for me both can match with my idea of Dolphins!
The dolphin sleeps with half a brain at a time: while one half rests, the other remains vigilant.
After mating, the female dolphin makes prenatal gymnastics. Gestation lasts one year.
To reduce friction with the water, the skin of the dolphin is renewed every two hours.