exotic-venom:

(Bitis nasicornis) rhinoceros viper

Habitat: Found mainly in rain forests, swamps, marshes, & floodplains; river, stream, & lake shores. Seldom goes
into woodlands. Well camouflaged among fallen leaves of forest floor. Sometimes tolerated by Kenyan
villagers as it resides in roofs of their huts.

Activity and Behavior: Mainly nocturnal, partially aquatic, climbs well; often basks in shrubs & trees. Usually lethargic & slow to
strike even in self-defense. Makes loud hissing noise if provoked, but usually is reluctant to strike. 

Venom Characteristics: Few bites of humans recorded; however, venom highly cytotoxic. May cause massive swelling & tissue
necrosis. Tissue necrosis resulting in amputation has been reported.