Boa constrictor
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The boa constrictor, also known as the common boa, is a species of large, non-venomous, heavy-bodied snake that is frequently kept and bred in captivity. The boa constrictor is a member of the family
Red tailed boa Rio Napo
A juvenile South American boa constrictor
A juvenile female boa constrictor in a shed cycle, indicated by the blue opaque eyes
Green anaconda
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The green anaconda, common anaconda, common water boa, akayima, or sucuri, is a boa species found in South America. It is one of the longest and heaviest known extant snake species. Like all boas, it
Boa constrictor
…although it is only modestly sized in comparison to other large snakes, such as the reticulated python, Burmese python, or the occasionally sympatric green anaconda, and can reach lengths from 3 to 13 ft (0.91 to 3.96 m) depending on the locality and the availability of suitable prey. Clear sexual dimorphism is…
Sucuri verde
A 4.3-metre (14 ft) anaconda skeleton on display at Museum of Osteology with other squamates
An anaconda at the New England Aquarium
Close-up of head