hugeegg

Not even a hoax! As the curator of the egg collection at London’s Natural History Museum explains, the double egg is rare but real and results from a fully formed egg being pushed back into the ovary, where another egg forms around it. Here’s another double egg and a report of a Texan double egg.

[youtube http://www.youtube.com/watch?v=wSHCBspYnAI]
(Via Kottke)