Meanwhile, 88 per cent were not aware the cat flap was, allegedly, invented by Sir Isaac Newton so his cat, Spithead, could come and go as he pleased while the great man carried out experiments.

10. A cat has no collarbone. 11. Isaac Newton invented the cat flap. 12. The technical name for a hairball is a bezoar. 13. A female cat is called a molly or a queen. 14. Cats can drink sea water.