Teenagers do crazy things. When a child becomes a teenager, they take more risks. Some are dangerous and cause injuries. A study of chimpanzees may explain risky behaviour in children. Researchers studied over 100 chimpanzees in Uganda. The chimps were between 2 and 65 years old. The researchers looked at how the chimps moved through trees. The youngest chimps did more dangerous things. Older chimps took fewer risks.

Children and young chimpanzees take risks. Children are at an age when parents stop them from doing risky things. However, teenagers have more freedom. They want to try risky things. The study shows risk-taking was the same for male and female chimps. A website said researchers want children to have "access to thrill-seeking play". This will help them to develop motor skills and make them stronger.