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
The Experience Of Russia
Oddly enough, the first attempts to train marine mammals for military actions have been taken in Russia, and the proposal made by Vladimir Durov, however, about the seals. Famous animal trainer suggested using animals as the bomb squad. Unfortunately, they all died in the result of sabotage by enemy of Russia – Germany. Case of poisoning combat seals investigated to the end and was not due to the revolution of 1917. Papers that reflect this learning, were eliminated, so they couldn’t use the enemies.
Then the idea of using marine animals caught the Americans that put together with other mammals and even dolphins. Initially, they served as a patrol, then became engaged in mining, simultaneously neutralizing floating people. Continue reading
Shark is one of the world’s oldest inhabitant of the seas and almost a perfect weapon for killing. Its anatomical features like created to hunt and destroy their prey. That only is ominous and awesome at the same time the device jaws of a white shark.
The size of the teeth of this predator reaches 5 or more inches diagonally, and the number reaches three hundred. And there are teeth in the jaws of a white shark in several rows: the front are working, and the rest of the backup, so to speak as a reserve! Continue reading
From the point of view of the trainers, imitation is a very useful quality of cetaceans. Because it significantly reduces the time of training dolphins. Furthermore, by imitating the stunts begin to perform even those animals that were not conducted special classes, just that they were near relatives, and observed their tricks.
So, in the Californian small aquarium whale learned the tricks just on the basis of the observation of his companions-the bottlenose has worked with coaches. In another case, Atlantic bottlenose dolphins are placed in one pool with tropical revolving prodelphinidin, adopting their manner of spin-axis during the high jump body into the air. Because the ranges of both species do not coincide, the animals can learn this technique in the wild. Such examples can be cited. Continue reading
That’s why the eyes of rime is different from other cetaceans. If marine dolphins eyesight adapted to catch very faint, rime has some semblance of “sunglasses”: cornea and lens are yellow colour, protecting the eyes from sunlight.
This also partially explains why they make clicks and waving their heads, sending each other signals.
Amazon the action is the largest of the river dolphins. It is also believed that Amazon river dolphins live in their environment tens of thousands of years and go a different path of evolution than their marine counterparts. She is associated with many myths and legends among the local population. 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