What is the crocoduck?
See Kirk Cameron explain it on Fox News (Jump to 2 minutes to see the crocoduck bit)
From the Urban Dictionary:
One of the most prominent icons of modern day Christianity, the Crocoduck is capable of dispeling all arguements in favour of Atheism and Darwinism simply by not existing. Its sworn enemy is the platypus, which, in harsh contrast, is capable of proving god does not exist by existing.
Kirk Cameron: “All throughout the fossil record and life, we don’t find one of these; a Crocoduck. There’s just nothing like it!”
(via RichardDawkins.net Store - Crocoduck T-Shirt)