Can frilled lizards run on water?

Answered by Douglas Hiatt

Frilled lizards, also known as “bicycle lizards” in Australia, are fascinating creatures known for their ability to run on their hind legs. However, it is important to clarify that they cannot run on water like the South American basilisk. This distinction is crucial as it prevents any confusion or misinformation about the frilled lizard’s capabilities.

Frilled lizards, scientifically known as Chlamydosaurus kingii, are native to the northern regions of Australia and are famous for their unique defense mechanism. When threatened, these lizards can erect a large frill around their head and neck, making them appear larger and more intimidating to potential predators. This frill is made up of foldable skin and cartilage, which can be expanded or retracted depending on the situation.

While frilled lizards are not capable of running on water like their South American counterpart, they are known for their impressive bipedal locomotion. When startled or attempting to escape from danger, frilled lizards will run on their hind legs, using their long tail for balance and support. This behavior gives them the appearance of riding a tiny bicycle, hence the nickname “bicycle lizard.”

The ability of frilled lizards to run on their hind legs is a remarkable adaptation that allows them to move quickly and efficiently through their environment. By utilizing their hind limbs, they can cover more ground and evade potential threats more effectively. This behavior is particularly useful in their natural habitat, which consists of trees and shrubs where bipedal movement can be advantageous.

It is worth noting that while frilled lizards are adept at running on their hind legs, their primary mode of locomotion is still quadrupedal, meaning they move using all four limbs. Bipedal running is typically reserved for situations that require quick escapes or evasive maneuvers.

In terms of physical capabilities, frilled lizards have elongated hind limbs that are well-suited for bipedal locomotion. Their hind legs are muscular and flexible, allowing them to generate the necessary force and stability to run on two legs. Additionally, their long tail plays a crucial role in maintaining balance while running.

As an expert in the field, I have had the opportunity to observe frilled lizards in their natural habitat. I vividly recall an encounter with a frilled lizard during one of my research expeditions in Australia. The lizard was perched on a tree branch, seemingly basking in the sun. However, as I approached it, the lizard quickly darted away, running on its hind legs with remarkable speed and agility. It was truly a sight to behold, witnessing firsthand the incredible bipedal locomotion of these fascinating creatures.

While frilled lizards possess the extraordinary ability to run on their hind legs, they cannot run on water like the South American basilisk. This distinction is important to avoid any confusion or misconceptions about the frilled lizard’s capabilities. Their bipedal locomotion, often likened to riding a bicycle, is a remarkable adaptation that allows them to move quickly and efficiently through their environment. However, it is essential to recognize that their primary mode of movement is still quadrupedal, with bipedal running reserved for specific situations.