clipped from: news.bbc.co.uk Copycat chimps build their own tools after watching video demonstrations.
During a study, the animals were shown footage of a trained chimp combining two components to construct a tool that enabled it to reach a food reward.
When given the same two components, the chimps made their own tools and used them to drag over a tasty treat.
Reporting in the Royal Society journal Proceedings B, scientists say this demonstrates what a "potent effect" social learning has in the primates.
Elizabeth Price, from the University of St Andrews in Scotland, led the research.
"With video, we can control exactly how much information the animals see, so we can understand exactly how much information they need to work out how to do the task," she explained.