Roman Willi / Blunthead tree snake (Imantodes cenchoa) hunting at night, Osa Peninsula, Costa Rica.

Piotr Naskrecki / Scorpion (Centruroides limbatus) glows when exposed to ultraviolet light, Costa Rica, sequence 1 of 2

Piotr Naskrecki / Scorpion (Centruroides limbatus) glows in ultraviolet light, Costa Rica, sequence 2 of 2

Piotr Naskrecki / Scorpion (Centruroides limbatus) feeding, their primary prey are crickets and katydids, Costa Rica

Piotr Naskrecki / Scorpion (Centruroides sp) newly born Scorpions stay on their mother's back, protected by her stinger until capable of hunting on their own, Costa Rica