Ever wondered about the brain power difference between dogs and cats?

Dogs, according to their owners, are more intelligent than cats. Some even have jobs; rounding up sheep, guarding buildings and performing circus tricks. Cat enthusiasts, however, consider the slavish grovelling ways of dogs to be slightly degrading.

Cats, they say, have self-respect and their relationships with us are more subtle. You never really own a cat; it lives with you on its own terms. Working as rodent exterminators, cats display intuition know-how and ingenuity.

Curiosity, it’s said, kills them, but it’s also a sign of intelligence.