The thorny devil is a small Australian lizard that looks almost like a creature from another world. Its body is covered with sharp-looking spikes, and its unusual appearance helps it survive in one of the harshest environments on Earth. Its scientific name is Moloch horridus, and it is found only in Australia.
Where Thorny Devils Live
Thorny devils live mainly in the dry and sandy regions of central and western Australia. They are found in deserts, sandy plains, and scrublands where temperatures can become very high and rainfall is often limited.
Instead of needing permanent water sources, thorny devils have developed clever ways to collect and use small amounts of moisture. Their habitat can look empty at first, but it provides the ants and other resources they need to survive.
A Body Covered in Spikes
An adult thorny devil is usually around 20 centimeters long. Its body is covered with many sharp spines that make it difficult for predators to swallow. The lizard also has a large, spiky-looking head, which makes its entire body look more intimidating than its small size would suggest.
Its skin can range from yellow and brown to reddish shades, often with darker markings. The colors can change depending on the animal's surroundings and temperature, helping it blend into the desert landscape.
Mostly an Ant Eater
Thorny devils have a very specialized diet. Ants make up almost all of their food, and a single lizard can eat thousands of ants in one day.
Instead of chasing individual ants across large areas, a thorny devil may find a busy trail and wait for the insects to pass. It uses its sticky tongue to catch them one after another. This feeding method allows the lizard to collect a large amount of food without wasting much energy.
How Does It Get Water?
One of the most fascinating features of the thorny devil is its ability to collect water using its skin. Tiny grooves between the scales can help move moisture across the surface of the body toward the mouth.
This means the lizard can take advantage of small amounts of water from dew, rain, or damp surfaces. In a dry environment where water may be difficult to find, this ability can be extremely useful.
Spikes That Help With Defense
The thorny devil's spikes are more than just an unusual feature. They provide protection against predators by making the lizard difficult to bite or swallow.
It also has another interesting defensive trick. A thorny devil can lower its head and present a false “head” at the back of its neck. This makes it harder for a predator to know where to attack.
When threatened, the lizard can also inflate its body, making itself look larger and more difficult to swallow.
Life in the Australian Desert
Thorny devils spend much of their time moving slowly through their habitat while searching for ants. They are not built for long-distance running, so they rely more on camouflage, armor, and their specialized feeding behavior.
During cooler periods, they may spend time basking in the sun to warm their bodies. Like other reptiles, they depend on external heat to regulate their body temperature.
Thorny Devil Babies
Thorny devils reproduce by laying eggs. Females dig a small burrow in sandy soil and lay a clutch of eggs inside it. The eggs remain underground while the embryos develop.
After hatching, the young lizards are independent and do not receive parental care. They begin life as tiny versions of the adults and must find food and avoid predators on their own.
A Remarkable Desert Survivor
The thorny devil may look strange, but almost every part of its body has a purpose. Its spikes provide protection, its colors help it blend into the landscape, its tongue allows it to eat large numbers of ants, and its skin can help collect precious moisture.
Living in a dry Australian landscape is not easy, but the thorny devil has found a very specialized way to survive there. It is a good reminder that unusual animals are often unusual for a reason. Their strange features can be the result of thousands of generations adapting to the challenges of their environment.
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