From BBC News:

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Scientists in Scotland have discovered that female chimpanzees can be just as violent as their male counterparts.

The St Andrews University psychologists found examples of female chimps killing the offspring of incoming mothers, previously regarded as a male trait.

The Fife team has been studying chimps in the Budongo Forest, Uganda.

The researchers said only three previous instances of lethal aggression in wild female chimps had been documented in the past 50 years.

The belief was that male and females differed greatly in nature but the psychologists found that if the chimps’ resources come under threat, the females could become just as aggressive as males. Continue reading