Fair play; Gorillas play competitive games

[Cetacea]

Gorillas play competitive games just like humans, according to scientists at the University of St Andrews.

The gorillas at San Francisco Zoo were observed over a period of five years playing with a variety of equipment.

The study found that gorillas like to keep games going and even give younger apes a fair chance to play.

The psychologists said the research would help trace the evolutionary origins of how humans understand each other.

Dr Joanne Tanner and Professor Richard Byrne watched gorillas play games to learn more about how apes are able to take account of each other's aims and abilities.

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