Snakebite affects millions of people each year. A new research project explores the conditions under which the jararaca pit viper of South America is most likely to lash out–and how this informs ...

The serpent that gave origin to all jararacas – the number 1 – must have arrived in South America between 11 million and 20 million years ago. Probably it came from Central America, moving from one ...

THE well-known blood-clotting activity of the venom from snakes of various species of the genus Bothrops has been attributed to its proteolytic activity1, although Michl2 (using paper electrophoresis) ...

Bothrops Asper (IMAGE) Technical University of Denmark Caption The venom from Bothrops Asper, a Costa Rican lancehead snake, can cause debilitating damage to muscle tissue. Photo: Vanesa Zarzosa.

The island of Queimada Grande, off the coast of southeastern Brazil, is the kingdom of a snake called Bothrops insularis. Pit vipers related to rattlesnakes but much more poisonous, they swarm in the ...

Parque Nacional Henri Pittier, below entrance to Rancho Grande, Aragua, Venezuela, South America Published Name ...