A snake heavyweight
This snake is the heaviest in the world, especially the females: they can be 5 times larger than the males! It owes its name to the green color on its back, while the belly may be grey, orange or yellow.
It feeds on large prey, which it kills by constriction: young tapirs, capybaras, fish, as well as crocodiles, boa constrictors and even, exceptionally, humans.