Tirimbina Reserve, La Virgen, Costa Rica
Not only is the casque-headed basilisk naturally well-camouflaged, it also has the ability to change colors, like a chameleon. While I was photographing a male clinging to a branch, I didn't even notice this female less than two feet away. It ended up dropping to the leaf-litter, where it again became a challenge to spot.
- Corytophanes cristatus