Copying others can help young orangutans build a broad diet
A Sumatran orangutan mother uses a stick tool to extract honey from a large tree holeGuilhem Duvot, SUAQ Project Young orangutans who spend little time working out for themselves how to build a broad diet can partly compensate by watching how other orangutans choose what to eat. The findings suggest that orangutans have different strategies for developing broad survival skills, says Revathe Thillaikumar at the Max Planck Institute of Animal Behavior in Germany. Young orangutans acquire a substantial body of knowledge before they can survive independently, which they must do by the time they are 8.5 years old. This includes understanding what foods are safe to eat, where to find them and how ...