观看免费视频 Chimpanzee Use Stick to Retrieve Apple From Pond
动画说明：
This person visiting a zoo witnessed some unusual animal behavior. They spotted a pair of chimpanzees using a stick to bring an apple closer and retrieve it from a pond.
This person visiting a zoo witnessed some unusual animal behavior. They spotted a pair of chimpanzees using a stick to bring an apple closer and retrieve it from a pond.