Cracking the Macaque Stone Tool Code
Burmese long-tailed macaques are clever little monkeys. Since 1887 we've known that these enterprising primates of Southeast Asia use stone tools to obtain food---a rare skill confined to only a few non-human species. Now, an international team of primatologists and archaeologists have cracked the complex code of marks and scratches that macaques leave on their tools.
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