closeup of a yellow with black snake on laying on a branch, tropical reptile

america american amethistina amethystine anaconda australia australian big black boa boidae branch closeup coiled coiling constrictor convoluted convolution eunectes hand herpetoculture herpetology laying long morelia nonvenomous notaeus paraguayan pet python pythonidae reptile reptilian rolled sanca scrub serpent serpentes snake terrarium tropical yellow zoology