The pale tail waves back and forth in a behaviour known as caudal luring. It is meant to emulate a worm, or insect and thereby attract potential prey, like anolis lizards or frogs. Two-striped forest viper (Bothrops bilineata):
Fer-de-lance (Bothrops atrox):
In the frenzy of a mating pond, there can arrive some confusion with pairings. Here a female fringe-lipped tree frog (Sinax garbei) was mistakenly grabbed by a male Dendropsophus sp., [though they don't seem particularly concerned about the mix up]:
Grasshopper with entomopathogenic fungus - (Ophiocordyceps locustiphila):
One of the more venomous spiders from South America, the wandering spider (Phoneutria ferox) has an impressive threat display:
Just an ant - Camponotus serveicentris:
Thanks for looking and commenting,
Paul
