Why do some snakes have horns and how they use it

In some of the world’s hottest and driest places, there live a few snakes that look quite different from others– they have tiny “horns” above their eyes. These horned snakes are perfectly built for desert life. Their colours, movements and hunting style help them survive where very few animals can.


From the sands of Africa to the rocky deserts of Arabia, these snakes have adapted in amazing ways. Each type has its own story and special features that make it unique. Here are seven kinds of horned snakes that live in deserts across the world.


Disclaimer: The details in this article are based on online sources and ecological studies. Information may differ depending on species and region.

Images: Canva (for representative purposes only)

The Desert Horned Viper (Cerastes cerastes) is one of the best-known horned snakes. It lives in the deserts of North Africa and the Middle East. Its sandy colour helps it hide easily, and it often buries itself under the sand with only its eyes and horns showing. It waits quietly for small animals like lizards and rodents to come close before striking. Interestingly, some snakes of this species have horns while others don’t.

Found in the deserts of the Arabian Peninsula, the Arabian Horned Viper (Cerastes gasperettii) is another expert at hiding. It buries itself under the sand during the day and hunts small mammals, birds and lizards at night. It uses its venom mainly to catch prey. Though it is venomous, it rarely harms people and prefers to stay away from humans.

The Nose-Horned Viper (Vipera ammodytes) is found in southern Europe and the Balkans. It has a small horn on its nose, which makes it easy to identify. This snake lives in rocky or hilly areas and eats small mammals, birds and lizards. Its venom is quite strong, but it usually bites only when it feels threatened. It helps keep the balance in nature by controlling rodent numbers.

The Matilda’s Horned Viper (Atheris matildae) is a colourful snake found in Tanzania. It has bright green and black scales with small horns above its eyes. Unlike most horned snakes, it lives in forested mountains and spends much of its time in trees. It feeds on small animals like birds and frogs. Because its habitat is shrinking, it is now considered critically endangered.

The Spider-Tailed Horned Viper (Pseudocerastes urarachnoides), found in Iran, is one of the most unusual snakes in the world. Its tail looks like a spider, which it uses to trick birds into coming closer. Once the bird gets near, the viper attacks. Its rough, horned scales help it blend in with rocks, making it hard to spot.

The Horned Adder (Bitis caudalis) lives in the dry deserts of southern Africa. It is small in size, with tiny horns above its eyes and colours that match the sand. It hides under loose sand and waits for small animals to pass by. Even though it has venom, it is not aggressive and usually stays calm unless disturbed.

The Desert Sidewinding Horned Viper (Crotalus cerastes), also known as the sidewinder, moves in a very special way. Instead of slithering straight, it moves sideways across the sand. This helps it stay on top of the hot surface and move quickly. It hunts small lizards and mammals and is well-suited to life in the desert.