Beware of angry crows will not forget you after a while ..!

A new U.S. study found that the crows have an excellent memory which can remember the person who posed a threat and a warning, some of it.






The Web site, "Discovery News" that U.S. researchers at the University of "Washington," and found that crows can differentiate between friendly face and the other dangerous,

And therefore, some warn of the dangerous face.
It turns out that these birds as smart Cbembanzi, remember the face of a threat to at least five years.

The researcher said the study's senior John Marzlow that "Our study showed that little (serious faces of crows) continues at least 5 years," adding that the crows that live between 15 and 40 years, you may remember the important links formed during most years of her life. A team of researchers to expose the crows in question to the "serious face" by wearing masks while catching the birds and then launched in 5 different locations.

After 5 years, the researchers found a hostile reaction by the big birds in the area on the mask which he had dressed, explains that the birds had warned some of it.