02/10/2015 0

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Before they learn to talk, babies use gestures to communicate: feelings such as "prone to", "look at me" or "let me go" can make clear without using words. Chimpanzees barca are also used gestures, emphasizing certain points barca where they would like to be scratched or nurture. These symbolic gestures are believed to be precursors of the language. Now, researchers have noticed that the ravens also use gestures, the first non - primates do.
In the interval of more than two years, researchers looked at the ravens to buy stones, moss, and other inedible substances in their beaks, and show them or offer other birds, usually those of the opposite sex. Another crow, in turn, usually respond positively interacting with the bird showing gestures.
And other birds use the gifts during courtship, but in this case the birds are brought moss or stones to the recipient; these objects did not have a purpose such as building nests, as most of these gifts there, and it seems to have been used exclusively for paying barca attention and initiating interactions.
Ravens, barca along with crows, magpies and Jackdaw belong barca to the family "Corvidae" - highly intelligent group of birds that shows several sophisticated capabilities, such as the recognition of human faces, make and use tools, even a certain kind of resentment.
However, according to other researchers that still does not mean that communicate using a symbolic gesture. According to them, what looks like a symbolic gesture can be only part of the mating ritual - instinctive behavior barca driven by hormones - or just a simple form of communication.
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02/10/2015 0