The dolphin is considered the most intelligent animal of the aquatic environment, and among the most intelligent animals on the planet.
A dolphin's dominant sense is echolocation. Acoustical "clicks" reverberate back to the dolphin, giving it a very clear picture of its surroundings. Echolocation allows a dolphin to locate food and detect obstacles and other creatures under almost any condition.
Social and Family Structure
Dolphins are very curious, strong and physically resilient. Bottlenose dolphins spend much of their time playing and interacting with their pod members. It is highly sociable and usually sighted in groups of 5, 7 or more. Pods are structured around a matriarchal system.
Distribution
Dolphins frequent bays and coastlines, usually in depths under 20 meters. While some pods take up permanent residence and establish home waters, others are migratory and swim considerable distances from coast to coast.
Threats
Man is the only known enemy of these animals. In particular, the tuna fishing industry has had a profoundly negative effect on the species' survival rates. Since dolphins usually accompany schools of yellow-fin tuna, they are often caught and perish in tuna nets.
Bottlenose dolphins are also hunted as food source, used as shark bait or taken alive to be trained for circus shows in some parts of the world, though there is a growing trend towards protective legislation for dolphins.
2 komentar:
thank you
Post a Comment