Why do we yawn? Is it because we're short on air? Matthew Boniface wanted to know this and whether he could catch a yawn from his cat. We spoke to Dr Hugh Matthews from Cambridge University to find out what makes them so contagious...
I don't know about cats, but it's been shown that dogs can catch yawns off people, and are more likely to catch them off their owners than strangers. Georgia, Mon, 24th Nov 2014
Its all about psychology, and there really is nothing physical about it.
Cats can also catch yawns: