"We were surprised because it's so big" (That's what she said!)

And that can only mean we have found the world's oldest penis, and I don't mean some old guy so you can stop picturing that right now. I am speaking evolutionarily here.

An Australian paleontologist ironically named Dr. John Long found "a specimen with an undoubted clasper with a knobbly end". A group of placoderms called arthrodires that lived about 400 million years ago now hold the record as having the first penis used to fertlize eggs in the female, and it's even "erectile".

Let the inappropriate jokes fly!