Project collaborator Héctor Franz-Chávez searching for rattlesnakes on Isla San José, Baja California Sur, Mexico. Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news ...

On remote islands in the Gulf of California, scientists uncovered a surprising twist in rattlesnake evolution: simpler venom ...

Red Diamond Rattlesnake (Crotalus ruber) from Isla San Jose, Baja California Sur, Mexico. Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert!

A longstanding theory in evolutionary biology is that venomous predators like rattlesnakes often develop complex venoms in ...