Why a no-fly zone helped Edinburgh's panda get knocked up

Is it a bird? Is it a plane? Well, if you were in Edinburgh Zoo in late July it was very unlikely to be the second one – because air traffic control put a no-fly zone in place to help the animals to get it on.

That’s right. The (as yet not 100% certain) pregnancy of Edinburgh’s celebrity panda Tian Tian has at least in part been put down to the kindly Civil Aviation Authority (CAA) agreeing to advise planes not to fly over and disturb her.

(Danny Lawson/PA)