Spider Tailed Horned Viper (Pseudocerastes urarachnoides) -
This rare and understudied viper has adapted a different type of hunting strategy. Unlike its cousins who use their tails as warning rattles, this small viper uses its strange looking tail as a caudal lure. The growth on the end of its tail resembles a spider crawling about, and it twitches it in such a way that captures the attention of animals that prey on spiders such as small mammals and birds.
Although this snake is extremely well adapted and special, specimens found for study are few and far between, so not much is known about its behavior, reproduction habits and lifestyle. It was not described officially until 2007. The first specimen found in 1968 was thought to have an abnormal growth on its tail. Another was not collected until 2003. Both were found in the deserts of Iran.