Ravens - the only non-human animal species, the ability to establish causal relationships Bashny.Net

All crows are considered to be great intellectuals, and the kind New Caledonian crow - and did the genius of the world's animals. These birds are not only able to use the tools, but also to make them out of materials that are not available in a normal environment. The animals only by a chimpanzee. But the ability to establish cause-and-effect relationships are not found even in chimpanzees.

Biologists conducted an interesting experiment. They launched the 2 groups of crows in cages, where there were boxes of food. Also in the cages was a hole where the experimenters poking a stick to scare birds away from the box. One group of crows saw a man with a stick, and the other could only see the very stick.

The Ravens, who saw the man approached the box and ate only when the man left. They realized that the presence of a man near the poles means the unavailability of food, the very same stick by itself is not dangerous. A bird in the group who saw only a stick, to show concern and often left trying to get food.

Scientists said that this is the first experiment that failed to prove a causal thinking in animals. In monkeys and dolphins such abilities is not revealed yet.



via factroom.ru