From: Dave the Gnome - PM
Date: 27 Apr 17 - 07:50 AM

..they can't get the wrappers off!
I think I heard that in infant school.
Definitely by the time I left Junior school it had been pointed out that the real reason was that they are indigenous to opposite ends of the earth.

(From Wiki): Penguins are a group of aquatic, flightless birds. They live almost exclusively in the Southern Hemisphere, with only one species, the Galapagos penguin, found north of the equator