We found this beautiful helmeted iguana (Corytophanes cristatus) or as perro zompopo as it is known locally near Arenal in Costa Rica. I don't know why it would be called perro "dog" but in any case, it is a species of lizard endemic to the New World. It is found from southern Mexico to South America in rainforests. With long limbs, it climbs well, and feeds on insects, spiders, worms, and other lizards. It can change colors too from dark to light or vice versa. Cool, isn't it?
Oxybelis aeneus, commonly known as the Mexican vine snake or brown vine snake, is a species of colubrid snake, which is endemic to the Americas. In Arizona it is also called "pike-headed tree snake". Even if is a mildly venomous rear-fanged snake and not dangerous to us, it still does look impressive with its mouth opened!