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 ...

The horned adder is another snake that has horns but no spider-like tail. Part of the genus Pseudocerastes, the spider-tailed horned viper's lives in western Iran and eastern Iraq, particularly in ...