Developed brain of dolphins
Dolphins can emit echolocation signals to investigate the situation and detection of obstacles, and the so-called “whistle”. These signals they tell each other about your condition. For example, “I’m in trouble” is a great melodic whistle, following a short and dull. “I’m angry” – it sounds like barking. There are sounds that indicate a greeting, farewell or disturbing. Those signals dolphins recognize members of his clan. Proven fact was that each Dolphin has its own name, which receives immediately after birth and responds to it all his life.
The most talkative representative of the Dolphin is the Beluga, or white whale. They povizgivayut, whistling at high frequencies, produces a melodic shimmering trills and sounds like a cackle, chirp or mauganui. Belugas can even imitate bell ringing or voices of birds, which have never been seen. These competencies often referred to as “sea Canaries”. Continue reading
Adult dolphins reach a length of 1.5 to 3 meters and can weigh from 200 to 400 kg. and more Dolphins that live in cold waters (e.g., near Scotland), usually larger than those that live in warm seas and oceans. Adult males usually larger than females.
Bottlenose dolphins are grey color: dark top and light (almost white) on the bottom. Bottlenose dolphins typically swim at a speed of 10 to 12 km per hour, but may run up to 30-50 km per hour. For breathing dolphins rise to the surface of the water. As they breathe, on average, every 5-8 minutes. Continue reading
Such as active sonar, unlike passive, not only picks up sounds that are distributed objects, but he sends call letters to them. Industrial fish finders are used during military operations to detect underwater enemy ships and navigation of the peace courts.
Unlike humans, dolphins use echolocation, also called biosonar, for the past several millennia. And needless to say, they are incredibly successful in this! The ability of the supersensitivity built into their DNA, so they can easily be distinguished in the water pneumatic BB gun from a little wheat grain at a distance of 15 metres or more. Continue reading
Australian biologists a few years ago was watching bottlenose dolphins living in shark Bay and revealed very ugly facts: it turns out that the males of these dolphins in groups of three, to make them handier to drive females for mating. This friendship can last for years
The dramatic events begin to develop when a dispute over a female face two such triples – then each group begins calling his comrades to his side. In disassembly are drawn dozens of animals, sometimes they have a brutal mass slaughter. Scientists have dubbed these bunch of animals “Dolphin mafia”.
But as it comes to females, bottlenose dolphins behave peacefully and even friendly. Continue reading
The brain of a Dolphin is not only a lot of weight, but has a complex structure with a large number of convolutions of the cerebral cortex, the superior part of the brain responsible for complex mental functions. But the highly developed brain is a sign of high intelligence and highly organized, complex behavior. And the dolphins have confirmed this fact, because they are skillful hunters, caring parents, disciplined members of the pack, and if necessary – and competent leaders. Continue reading
Very clearly visible in Dolphin speech, even to the casual observer, is characteristic of these animals whistles. All of these whistles, there are 32 species, b each represent a particular phrase. For example, the signal of pain or alarm, greeting and invocative cry, etc.
To date, scientists using a special method sippa, found about 180 communication signs in marine mammals. Researchers are working on their systematization, and even try to compile a dictionary of communication of dolphins. However, despite numerous studies, to fully decipher the language of dolphins so far and failed. But the communication between these intelligent animals are poorer from it is not. Continue reading