the cottonmouth viper is native to the Southeastern United States, typically in or near water. This semi-aquatic snake is a strong swimmer and can attain speeds of about 7 mph (11 kph) on both ...
In the mountains of western Iran, a fascinating predator known as the spider-tailed horned viper (Pseudocerastes urarachnoides) employs a remarkable hunting strategy. This snake has evolved a ...