Rattlesnake venom evolves and adapts to specific prey, study finds

Surprising new evidence challenges longstanding ideas about evolutionVenomous wide-bodied rattlesnakes on several serpent-infested Mexican islands have provided biologists from Florida with surprising new evidence about the evolution of animals.A team from the University of South Florida joined scientists from Mexico on three separate camping expeditions to 11 uninhabited islands in the Gulf of California, a region known as the world's biggest rattlesnake nest. Continue reading...