The spider-tailed viper is a snake with the best of both worlds: a viper’s body and a tail like a spider. Shuddering yet?
Here’s a crazy bit of evolution that I bet you didn’t expect, a snake that developed a tail to mimic its prey’s favorite meal: an insect.
Now imagine yourself a bird and you see a tasty little spider right there on the rocks. The only problem is that the spider has a viper on the other end!
Game over for the bird.