Whether you’re a nature enthusiast, a homeowner curious about local wildlife, or a student studying Tennessee’s reptile diversity, understanding the different types of lizards found in the state can enhance your appreciation of its ecosystems. This list covers the most common and interesting lizard species in Tennessee, providing detailed descriptions to help you identify and learn about each one.
Green Anole (Anolis carolinensis)
The Green Anole, often called the American chameleon, is a small, slender lizard known for its vibrant green color, especially during the breeding season. It measures about 5 to 8 inches long and can change its hue to brown or gray when stressed or during cooler weather. Found throughout Tennessee’s gardens, shrubs, and woodlands, the Green Anole is beneficial for controlling insect populations and is a favorite among casual observers for its quick movements and color-shifting abilities.
Six-lined Racerunner (Aspidoscelis sexlineata)
The Six-lined Racerunner is a fast-moving, slender lizard recognizable by its six dark stripes running lengthwise down its light brown or tan body. Typically reaching lengths of 7 to 10 inches, this species prefers open, sandy, or rocky areas such as prairies and edges of forests. Its rapid movement helps it escape predators, and its diet mainly consists of insects and small invertebrates, making it an important part of the local ecosystem.
Southern Fence Lizard (Sceloporus undulatus)
The Southern Fence Lizard is a robust, medium-sized lizard measuring 4 to 8 inches, notable for its rough, spiny scales and the distinctive blue patches on males’ bellies during the breeding season. It is commonly found basking on rocks, fences, and tree trunks across Tennessee’s woodlands and grasslands. Its ability to thrive in urban and suburban areas makes it a familiar sight for many Tennesseans, and it plays a key role in controlling insect pests.
Coal Skink (Plestiodon anthracinus)
The Coal Skink is a small, shiny black or dark brown lizard with a distinctive bright blue tail in juveniles and sometimes in females. Adults typically reach 4 to 6 inches and prefer moist, wooded environments, often hiding under leaf litter or logs. Its sleek body and quick movements help it evade predators, and it feeds mainly on insects and small invertebrates, making it an important part of forest floor ecosystems.
Slender Glass Lizard (Ophisaurus attenuatus)
The Slender Glass Lizard is a legless lizard that resembles a snake but can be distinguished by its eyelids and external ear openings. Growing up to 3 feet long, it has a smooth, shiny body that is typically brown or gray with darker markings. Found in grassy fields, open woodlands, and along roadsides, the Glass Lizard burrows and forages on insects and small invertebrates, offering a fascinating glimpse into limb reduction evolution.
Common Wall Lizard (Podarcis muralis)
While not native to Tennessee, the Common Wall Lizard has been reported in some urban areas, likely introduced through the pet trade. It is a small, agile lizard with a variety of color morphs, including browns, grays, and oranges, often with distinctive markings. Preferring rocky walls, ruins, and gardens, it feeds on insects and is appreciated for its adaptability and ease of observation in human-made environments.
Green Tree Lizard (Lialis viridissimus)
Though more common in Australia, some reports suggest a similar species, the Green Tree Lizard, may occasionally be mistaken in Tennessee. For accuracy, most local tree-dwelling lizards are anoles or skinks. However, Tennessee’s lush canopies support various small arboreal lizards, such as the Green Anole, which is worth noting for its climbing ability and vibrant color changes, making it a favorite for those interested in tree-dwelling reptiles.
How to Choose
When selecting a lizard to observe, consider factors like habitat preference, size, and behavior. For example, if you want a lizard that thrives in urban areas, the Fence Lizard might be ideal, whereas the Racerunner suits open, sandy environments. Pay attention to activity patterns—some species are more diurnal, making them easier to spot during the day, while others are more secretive or nocturnal. Additionally, understanding the local environment will help you identify which species are most likely to be present in your area.
Frequently Asked Questions
Are lizards in Tennessee dangerous to humans?
No, most Tennessee lizards are harmless and pose no threat to humans. They are non-venomous and generally avoid contact.
What is the most common lizard in Tennessee?
The Green Anole is arguably the most widespread and commonly seen lizard across the state, especially in gardens and urban settings.
Do lizards in Tennessee hibernate?
Yes, many lizard species in Tennessee hibernate or become less active during the cold winter months, typically burrowing underground or seeking shelter in crevices.
Can I keep Tennessee lizards as pets?
Some species, like Green Anoles, are popular in the pet trade, but it’s important to ensure proper care and legality before capturing or keeping wild lizards.
Where can I find lizards in Tennessee?
Lizards can be found in a variety of habitats, including gardens, forests, rocky areas, and open fields, especially near logs, rocks, and shrubs.
Final Thoughts
Tennessee’s diverse habitats support a wide array of lizard species, each with unique characteristics and ecological roles. From the vibrant Green Anole to the swift Six-lined Racerunner, these reptiles add color and activity to the state’s natural landscape. By understanding their habits and habitats, you can better appreciate and safely observe these fascinating creatures in their native environment. Whether you’re a casual observer or a dedicated herpetologist, Tennessee’s lizard diversity offers endless opportunities for discovery and enjoyment.
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