There may be no game simpler than tag. To play, you need nothing but a few friends and some energy. In fact, tag is so easy to play that it reaches other primate species: Gorillas like to play, too.

Gorillas hit-and-run in 'games' of tag in the same way humans do and for the same reason -- to keep their competitive advantage, a new study has found. It is the first study to show apes, like humans, ...

Gorillas apparently can play tag much like humans do, scientists now reveal. Subscribe to read this story ad-free Get unlimited access to ad-free articles and exclusive content. These hit-and-run ...