South American Bushmaster

The South American Bushmaster is the largest viper in the Western Hemisphere, a formidable pit viper inhabiting the dense rainforests of the Amazon Basin. It is rarely encountered due to its remote habitat and secretive habits.

Unlike most vipers, the bushmaster is oviparous, laying eggs rather than bearing live young, a distinctive trait among New World pit vipers.

• Large, heavy body with tan to pinkish-brown background and bold dark diamond or triangular blotches
• Broad, triangular head distinct from the neck
• Heat-sensing pit between eye and nostril
• Vertically elliptical pupils
• Rough, keeled scales giving a coarse texture
• Distinctive spine-like scale at the tip of the tail used to produce a rasping sound
• Much larger than other Amazonian pit vipers such as the fer-de-lance

Inhabits primary and undisturbed lowland tropical rainforest throughout the Amazon Basin and adjacent forested regions of South America, favoring areas with dense leaf litter and low human disturbance.

Nocturnal and largely terrestrial, spending much of its time coiled motionless awaiting prey. Feeds on small to medium mammals via ambush predation. Oviparous, laying eggs and, unusually among vipers, exhibiting a degree of nest attendance by the female. Generally shy and avoids confrontation.