Date: July 22, 2015
Source: University of Cambridge
Summary: Newly discovered tool-length 'subcultures' in our closest living relatives provide striking parallel with cultural differences observed between adjacent groups in human societies.
For centuries it has been thought that culture is what distinguishes humans from other animals, but over the past decade this idea has been repeatedly called into question. Cultural variation has been identified in a growing number of species in recent years, ranging from primates to cetaceans. Chimpanzees, our closest living relatives, show the most diverse cultures aside from humans, most notably, in their use of a wide variety of tools.
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