Which person has a wild crocodile been friends with for 20 years? Detailed answer

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Which person has a wild crocodile been friends with for 20 years? Detailed answer

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Which person has a wild crocodile been friends with for 20 years?

In 1991, Costa Rican Gilberto Sedden found a dying crocodile on the river bank, shot in the left eye. He took him away in a boat and nursed him for six months at his home, where he not only fed and gave medicine, but also hugged the reptile, which he named Pocho. When Pocho recovered, Gilberto took him to the river, but he returned to his house and began to live in a pond nearby. They began to swim together every day, play and hug, and later Gilberto began to arrange performances from this for tourists. In 2011, Pocho died of old age.

Authors: Jimmy Wales, Larry Sanger

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Everyone can develop echolocation in themselves 20.03.2012

It has long been known that some blind people develop the ability to echolocate. When walking, they click their tongue, and by picking up a faint echo from these clicks, they can estimate the distance to an object, its size, shape, and even the texture of its surface. A group of Canadian researchers decided to figure out how the brain copes with such a task. Recruiting a group of blind and sighted volunteers, they invited them to listen to tape-recorded clicks with an echo, while simultaneously observing what was happening in their brain using a magnetic resonance imaging scanner.

It turned out that everyone's brain reacted to sounds in the same way, and only those blind people who developed a sense of echolocation in themselves activated the so-called "spur" region of the cortex, which works with images in sighted people. When the volunteers were asked to listen to the same clicks, but without echo, this area did not activate at all. This meant that the region of the brain responsible for vision in blind people begins to process sounds, and not all, but the echo.

Scientists do not yet fully understand why this particular part of the cortex is activated. They suggest that, left with a blind man without work, this region begins to work with the information that comes to it from other senses, that is, from the ear. Human echolocation has been studied very poorly, but the researchers involved in it claim that with its help a blind person can find an unoccupied chair in a restaurant, determine what the wall is made of - brick or cement; he can even, they argue, cycle through a crowded street.

Scientists are convinced that echolocation is by no means a rare gift, and many can develop it in themselves. True, while they still do not quite understand how this can be taught.

“Echolocation can be learned even by sighted people,” says one of the study participants Melvin Goodale from the University of Western Ontario, “although it is not yet clear how well they will do it. After all, the part of the cortex responsible for vision deals with visual "However, I know some sighted people who have learned to echo well. This property can be useful, say, to firefighters, with its help they can find a way out of the room in complete darkness."

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