Survival of the fittest.
No one ever said rehab's an easy ride.
This is something I've never really considered but it's completely and utterly weird.
Thought your junk looked funny? Wait till you get a load of what these creatures are packing.
The most important thing in the animal kingdom is survival, and these creatures' perfect camouflaging techniques certainly gives them the upper hand.
Buzzfeed have finally made a good video about one of the weirdest topics imaginable.