Thursday, September 6, 2012

OK Then ...

The swan is the only bird that has a penis.

So how do those other bird eggs get fertilized? Never thought about this or knew about swans.

2 comments:

Mr.Mischief said...

The duck is a bird, and is known for it's corkscrew-shaped penis that can be quite long.

http://www.wired.com/wiredscience/2010/08/duck-penises/

den81164 said...

http://www.abc.net.au/science/articles/2001/09/14/366856.htm?topic=enviro