Chimpanzees have figured out how to cross roads safely, a team of scientists has discovered.
Researchers saw big adult males at the front and back of groups crossing two roads, keeping the smaller chimps in the middle safe from danger.
The animals in western Africa use the same approach to cut down the risk of being attacked by other animals in dangerous places like water holes.
The findings show that chimps are good at working together to help each other.
The small group of animals was seen crossing two roads in Bossou, Guinea.
One of the roads was large and very busy, while the other was smaller and usually used by people on foot.
The researchers also think that because roads are quite a new thing for chimps to have to deal with, the remarkable behaviour shows they are very good at coming up with solutions to new problems.
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