Cook's Tree Boa

Cook's tree boa is a slender, non-venomous arboreal constrictor endemic to the small Caribbean island of Saint Vincent. It belongs to the same genus as the mainland Amazon tree boa but has evolved in isolation on the island for a considerable period.

The species is of particular interest due to its restricted range, making it vulnerable to habitat changes on a single small island. It poses no venom hazard to humans.

Cook's tree boa has a slender, laterally compressed body typical of arboreal Corallus species, with large eyes adapted for nocturnal vision.

• Coloration ranges from tan and gray to reddish-brown, often with darker irregular blotches
• Smooth scales and a prehensile tail
• Head is distinctly triangular with heat-sensing labial pits
• Adults typically reach 1.2-1.8 m (4-6 ft)
• Slimmer build distinguishes it from heavier terrestrial boas found elsewhere in the Caribbean

This species is restricted to the island of Saint Vincent, where it inhabits forest canopy, dense vegetation, and scrubland. It is highly arboreal, rarely descending to the ground except to move between trees or during breeding activity.

Habitat availability on the island directly limits its range, making forest cover an important factor for the species.

Cook's tree boa is nocturnal, hunting birds, bats, and small mammals from perches in vegetation using ambush tactics and constriction. It relies on stillness and camouflage during the day, coiling on branches.

It is ovoviviparous, giving birth to live young, typically in modest litter sizes consistent with other Corallus species. It can be somewhat defensive when disturbed, striking readily if threatened.