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article imageNew way to identify wolves by their howls

By Tim Sandle     Jul 27, 2013 in Environment
Researchers now believe that they can tell wolves apart by analyzing the pitch and volume of their vocalizations (studying the howl that the animal makes).
Scientists have developed a new computer program that is able to identify individual wild wolves by their howls, according to the BBC. The program boasts a high degree of accuracy. The method was developed by testing it against sound recordings in the British Library and then testing it out in Canada.
Previous attempts to identify wolves by their howls relied upon analyzing the pitch of their howls alone. The new method measures pitch, but it also measures the volume, or amplitude, of the wolfs’ calls. This, according to the research team, has boosted the accuracy of the method to 97 percent.
The technique should be useful for conservationists monitoring wild wolf populations. This isn't the latest wildlife sound identifier either. Recently scientists in Puerto Rico revealed audio technology that can recognize rainforest animals by the sounds they make.
The program has been described in the journal Bioacoustics. The paper is titled "Identifying individual wild Eastern grey wolves (Canis lupus lycaon) using fundamental frequency and amplitude of howls."
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