Conqueror of the seas and oceans before becoming faithful companions of seamen. Dolphins, which are very beloved animals, are part of humanity’s familiar universe, which recognises their capacity to achieve extraordinary feats, but now they must protect them from predators of all types, including humanity! It is a magnificent example of adaptive evolution of a terrestrial mammal that adopted an exclusively marine way of life and acquired the shape of a fish.
It has a robust appearance, of a grey-beige colour.
Dolphins have a very sharply-defined short snout and a falciform dorsal fin. The dolphin is a sociable and intelligent animal that in its adaptation to marine life has developed a perception and orientation system called “echolocation” which is similar to, but more complete than, the sonar used in navigation; the dolphin emits sounds that, when they hit an obstacle, reflect an echo that the animal captures and it provides it with information about the surrounding environment.
They usually travel in highly cohesive pods and it is not difficult to see them near boats. Atlantic bottlenose dolphins form groups of 10 (at the coast) to 25 (in the high seas). It is not unusual for hundreds of them to gather, above all in the tropical Pacific.
They reproduce only every 2 or 3 years, since their lactation period lasts between a year and a year-and-a-half.
Their great enemies are fishing, drift nets, pollution, and acoustic disorders caused by boats.
Oceans and seas