Adult red-tailed boa, Boa constrictor constrictor, caught by a local guide on Tierra Firma on the Marañon River, Peru.

Adult red-tailed boa, Boa constrictor constrictor, coiled up in a tree on Tierra Firma on the Marañon River, Peru.

Adult red-tailed boa, Boa constrictor constrictor, caught by a local guide on Tierra Firma on the Marañon River, Peru.

Adult red-tailed boa, Boa constrictor constrictor, caught by a local guide on Tierra Firma on the Marañon River, Peru.

Captive adult Boa constrictor (Boa constrictor), Parque das Aves, Foz do Iguacu, Parana State, Brazil, South America

Boa Constrictor, Costa Rica, Central America

Captive adult Boa constrictor (Boa constrictor), Parque das Aves, Foz do Iguacu, Parana State, Brazil, South America

Adult garden tree boa, Corallus constrictor, curled up on a tree deep within the Pacaya Samiria Preserve, Peru.

Boa Constrictor (Boa constrictor), native to in South America, in captivity, North Rhine-Westphalia, Germany, Europe

Portrait of Boa constrictor, Amazon river basin Brazil

Portrait of Boa constrictor, Amazon river basin Brazil