Just a thought

[den]

If platypuses have XXXXX rated sex, I wonder if echidnas are the same. I bet no one has studied that, because echidnas are common and boring and ordinary.

Editspoke too soon. There are plans.
http://www.nature.com/news/2004/041025/full/041025-1.html

Comments

[kayshapero]

Um... no, actually. :-> Though I did know male rattlesnakes penises have two.