Study suggests environment may impact apes' ability to understand declarative communication

When we notice somebody pointing at something, we automatically look in the direction of the gesture. In humans, the ability to understand this type of gesturing (known as declarative communication) may seem to be an automatic response, but it is actually a sign of sophisticated communication behaviour. Numerous studies have tried to determine if great apes (for example, chimpanzees and bonobos) are able to understand declarative communication, but results have been mixed...

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