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What is a Crocodile Lizard?

Sara Schmidt
Sara Schmidt
Sara Schmidt
Sara Schmidt

Scientifically named Shinisaurus crocodilurus, the Chinese crocodile lizard is a semi-aquatic reptile. The lizard can be found in various provinces of China, including the Hunan, Guangxi Zhuang, and Guizhou areas. The lizard is typically gray-green or brown in color, with dark black and orange to rust-colored stripes.

Male Chinese crocodile lizards can grow up to 16 inches (41 centimeters) in length, while females are smaller. Plated scales make up the lizard's head, though the scales behind their eyes are rigid. Bead-like scales cover the lizard's body from neck to tail base. These lateral scales alternate with knobbier scales.

The crocodile lizard is found in the Hunan, Guangxi, and Guizhou provinces of China.
The crocodile lizard is found in the Hunan, Guangxi, and Guizhou provinces of China.

Crocodile lizards are named after their oval osteoderms, or bony scale deposits. Four rows of these deposits, coupled with two rows of scales across the body, give the creature a crocodile-like appearance. Male lizards are more colorful than females, featuring bright orange throats and flanks. Some male lizards even have bright coloration on their heads.

Chinese herbalists have used the crocodile lizard medicinally to cure insomnia for hundreds of years.
Chinese herbalists have used the crocodile lizard medicinally to cure insomnia for hundreds of years.

During the breeding season, coloration is more vibrant. The lizard's grayish skin turns a yellowy tan color. Sometimes it may even change to light orange. Baby crocodile lizards are uniform in color, typically dark brown across the body with a lighter, tan-colored face.

The crocodile lizard prefers to live in cool forests, spending much of its life in overhanging branches around shallow water. This makes it easy for the reptiles to hunt their prey, which includes an array of insects, fish, snails, and tadpoles. Solitary creatures, crocodile lizards typically live alone, with only one lizard per small pond.

Indigenous people refer to the crocodile lizard as the lizard of great sleepiness. This is because the lizard often exits the water to take a metabolic pause, or suspension of response to stimuli. This pause often takes place for hours, during which the lizard remains completely motionless. Due to this phenomenon, Chinese herbalists have used the lizard medicinally to cure insomnia for hundreds of years.

Along with many other small reptiles, the crocodile lizard is a popular pet. Other lizards as pets include the legless lizard, skink, agama lizard, gecko, bearded lizard, anole, Mexican lizard, snake lizard, and orange lizard. To care for a pet lizard, a clean tank, heat lamp, and plenty of food and water are needed. The semi-aquatic crocodile lizard requires a habitat with plenty of soil and dry land combined with water for swimming.

Lizard food for pets can include live protein, such as insects and worms, as well as store-bought, prepackaged food. Fresh vegetables can be offered for a variety of nutrients. Adult crocodile lizards need to consume at least ten percent of their body mass weekly, while young lizards require nearly 60 percent of their body mass. Females need 40 percent of their mass when bearing eggs.

Frequently Asked Questions

What is a Crocodile Lizard and where can it be found?

The Crocodile Lizard, scientifically known as Shinisaurus crocodilurus, is a semi-aquatic reptile native to southern China and northern Vietnam. It inhabits cool, clear streams in forested areas. This lizard is distinctive for its elongated body, short legs, and a tail that resembles that of a crocodile, hence its name.

What does the Crocodile Lizard eat?

Crocodile Lizards are carnivorous, primarily feeding on small invertebrates such as insects, snails, and worms. They are also known to consume small fish and amphibians. Their diet reflects their semi-aquatic lifestyle, hunting both in water and on land near their aquatic habitats.

Is the Crocodile Lizard endangered?

Yes, the Crocodile Lizard is listed as Endangered on the IUCN Red List. Their populations are declining due to habitat destruction, pollution, and collection for the pet trade. Conservation efforts are in place to protect their natural habitats and to regulate trade, aiming to prevent further decline of the species.

How does the Crocodile Lizard reproduce?

Crocodile Lizards are ovoviviparous, meaning they give birth to live young from eggs that hatch inside the female's body. A female typically gives birth to 2-12 young after a gestation period of about 9-10 months. This reproductive strategy is relatively rare among lizards and allows the young to be born in a more developed state.

What are some unique behaviors of the Crocodile Lizard?

Crocodile Lizards exhibit unique behaviors such as "planking," where they stiffen their bodies and float on water with their limbs outstretched. This may aid in thermoregulation or serve as a defensive posture. They are also known for their vocalizations, which include hisses and distress calls, unusual for most lizards.

How can one contribute to the conservation of Crocodile Lizards?

Contributing to the conservation of Crocodile Lizards involves supporting habitat protection initiatives and responsible pet ownership. Avoid purchasing wild-caught individuals, and instead support captive breeding programs. Additionally, donating to conservation organizations working in China and Vietnam can help fund research and habitat preservation efforts for this unique species.

Sara Schmidt
Sara Schmidt

A graduate of Southeast Missouri State University, Sara has a Master’s Degree in English, which she puts to use writing for AllThingsNature and several magazines, websites, and nonprofit organizations. She has published her own novella, and has other literary projects currently in progress. Sara’s varied interests have also led her to teach children in Spain, tutor college students, run CPR and first aid classes, and organize student retreats.

Learn more...
Sara Schmidt
Sara Schmidt

A graduate of Southeast Missouri State University, Sara has a Master’s Degree in English, which she puts to use writing for AllThingsNature and several magazines, websites, and nonprofit organizations. She has published her own novella, and has other literary projects currently in progress. Sara’s varied interests have also led her to teach children in Spain, tutor college students, run CPR and first aid classes, and organize student retreats.

Learn more...

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    • The crocodile lizard is found in the Hunan, Guangxi, and Guizhou provinces of China.
      By: gringos
      The crocodile lizard is found in the Hunan, Guangxi, and Guizhou provinces of China.
    • Chinese herbalists have used the crocodile lizard medicinally to cure insomnia for hundreds of years.
      By: aseph
      Chinese herbalists have used the crocodile lizard medicinally to cure insomnia for hundreds of years.