Why do dogs bury bones? © Getty Images

Why do dogs bury bones?

Evolution has a lot to answer for it, but for modern domesticated dogs it could be more to do with just being a bit bored.

Asked by: Jared Paterson, York

Advertisement

Wolves bury food that they can’t eat immediately. This keeps it safe from scavengers like crows and the cold ground helps to preserve it. Birds don’t have a good sense of smell so they find it harder to locate these buried caches than wolves do. Dogs retain this behaviour and will bury toys or bones – either because they are saving their leftovers, or just because they are bored.


Advertisement

Subscribe to BBC Focus magazine for fascinating new Q&As every month and follow @sciencefocusQA on Twitter for your daily dose of fun science facts.