Tortoises are fascinating land reptiles found across North, Central, and South America, each with unique traits and lifestyles. From the burrow-digging Gopher Tortoise of the southeastern U.S. to the massive Galápagos Tortoise, these species play vital roles in their ecosystems. In this guide, you’ll get a closer look at 10 American tortoises, how to identify them, where they live, and what they eat.
1. Gopher Tortoise
The Gopher Tortoise is a land-dwelling reptile native to the southeastern United States, especially Florida, Georgia, Alabama, Mississippi, and South Carolina. Known for its burrowing habits, this tortoise plays a critical role in its ecosystem by digging deep tunnels that provide shelter for over 350 other species.
Identification
- Scientific Name: Gopherus polyphemus
- Shell Color: Brown to grayish with a domed shape
- Plastron: Yellowish or light brown
- Size: 9 to 15 inches long
- Lifespan: 40 to 60 years (can live over 80 in the wild)
- Feet: Flattened, shovel-like front feet for digging
- Habitat: Dry uplands, pine flatwoods, scrub, and coastal dunes
Behavior
Gopher Tortoises are solitary and primarily active during the daytime. They dig extensive burrows up to 40 feet long and 10 feet deep to escape predators and extreme temperatures.
Diet
They are strict herbivores, feeding on grasses, legumes, fruits, and low-growing plants. Seasonal availability of vegetation influences their diet.
The gopher tortoise has some distinct physical traits as same like asian tortoise varieties diet that set it apart from other tortoises:
- Stumpy, elephant-like back legs that are not webbed.
- Front feet shaped like shovels, perfect for digging burrows.
- A special bony plate called the nuchal scute, located directly behind the head.
- A dark brown to gray-black shell with a yellow plastron (bottom shell).
- Males have a concave plastron, while females have a flat one.
- Burrows with half-moon-shaped entrances, which are unique to gopher tortoises.
2. Desert Tortoise
The Desert Tortoise thrives in the arid regions of the southwestern United States and northwestern Mexico. This hardy reptile is adapted to survive extreme heat and limited water in the Mojave and Sonoran Deserts. It spends most of its life in underground burrows to regulate body temperature.
Identification
- Scientific Name: Gopherus agassizii
- Shell Color: Brown to tan, slightly domed
- Plastron: Pale yellow
- Size: 9 to 15 inches in length
- Lifespan: 50 to 80 years
- Feet: Thick, elephant-like legs with strong claws
- Habitat: Desert scrub, rocky hillsides, washes, and sandy flats
Behavior
Desert Tortoises are most active in spring and fall. They brumate (hibernate) during winter and estivate during the hottest part of summer, spending over 90% of their life underground.
Diet
They eat desert grasses, wildflowers, cacti, and herbs. Their specialized bladder allows them to store water for long periods.
The Desert Tortoise (Gopherus agassizii and Gopherus morafkai) has several distinct features that set it apart:
- High-domed shell that is typically tan or dark brown, helping it blend into desert landscapes.
- Heavily scaled front legs, which are adapted for digging burrows.
- Relatively long rear legs, unlike the stumpy back legs of the gopher tortoise.
- Males have longer tails and a concave plastron (bottom shell), while females have a flat one.
- Burrows extensively, spending up to 95% of its life underground to escape extreme desert temperatures.
- Keystone species, meaning its burrows provide shelter for many other desert animals.
Texas Tortoise
The Texas Tortoise is the smallest North American Gopherus species, native to southern Texas and northern Mexico. Unlike its desert cousins, it prefers brushland and grassland habitats and is protected by law in Texas.
Identification
- Scientific Name: Gopherus berlandieri
- Shell Color: Olive-brown with distinct growth rings
- Plastron: Pale yellow
- Size: 6 to 9 inches
- Lifespan: 40 to 60 years
- Feet: Short, sturdy, adapted for walking not digging
- Habitat: Thorn scrub, mesquite brush, and open grasslands
Behavior
The Texas Tortoise is diurnal and more mobile than other tortoises in its genus. It doesn’t dig deep burrows but shelters under vegetation or shallow scrapes.
Diet
Feeds on cacti, flowers, grasses, and fruits like prickly pear. It’s a key seed disperser in its habitat.
The Texas Tortoise (Gopherus berlandieri) has several unique characteristics that make it stand out:
- Smallest North American tortoise, reaching about 8.75 inches (22 cm) in shell length.
- Rounded carapace, almost as wide as it is long, with dark brown coloration and beige highlights.
- Yellowish-orange, “horned” scutes on its shell.
- Cylindrical, columnar hind legs, similar to an elephant’s.
- Males have elongated, forked gular scutes used for territorial jousting.
- Does not dig burrows like other tortoises; instead, it creates shallow pallets near vegetation.
- Primarily vegetarian, feeding heavily on prickly pear cactus and other succulents.
Sonoran Desert Tortoise
The Sonoran Desert Tortoise is closely related to the Mojave Desert Tortoise but found in Arizona and parts of northern Mexico. It inhabits rocky slopes and desert scrub, adapting well to extreme drought and high temperatures.
Identification
- Scientific Name: Gopherus morafkai
- Shell Color: Light brown to gray, slightly flattened
- Plastron: Cream to light yellow
- Size: 10 to 14 inches
- Lifespan: 50 to 80 years
- Feet: Broad and strong for climbing rocky terrain
- Habitat: Rocky hillsides, bajadas, and washes in the Sonoran Desert
Behavior
This tortoise is more active during the monsoon season (July–September). It uses rock shelters and shallow burrows to escape the sun and predators.
Diet
Consumes a variety of desert plants, including succulents, grasses, and wildflowers. It gets most of its moisture from food.
The Sonoran Desert Tortoise (Gopherus morafkai) has several distinct features that help identify it:
- High-domed, rugged shell that ranges from dark brown to grayish, blending into rocky desert landscapes.
- Stout, elephant-like limbs, well-adapted for digging burrows.
- Males have longer tails, a concave plastron, and larger gular shields, which they use in territorial fights.
- Prefers rocky foothills and desert slopes, often found at elevations between 500 and 5,000 feet.
- Herbivorous diet, feeding on grasses, cacti, and wildflowers, with the ability to store water in its bladder for survival.
- Burrows extensively, spending much of its life underground to escape extreme desert temperatures.
Bolson Tortoise
The Bolson Tortoise is the largest North American tortoise species, native to north-central Mexico. Once widespread, its range has significantly decreased, and it is now critically endangered and subject to rewilding programs in New Mexico.
Identification
- Scientific Name: Gopherus flavomarginatus
- Shell Color: Light brown with faint yellowish edges
- Plastron: Broad and pale
- Size: 14 to 16 inches or more
- Lifespan: Over 80 years
- Feet: Thick and sturdy for digging
- Habitat: Arid grasslands and desert basins
Behavior
Bolson Tortoises are shy and spend much of their time in deep burrows. They are more social compared to other Gopherus species.
Diet
Feeds on grasses, flowering plants, and cacti. It prefers open grasslands where such vegetation is abundant.
The Bolson Tortoise (Gopherus flavomarginatus), also known as the Mexican Giant Tortoise, is the largest of the North American tortoises and has several distinct features:
- Large, high-domed shell, reaching up to 18 inches (46 cm) in length.
- Yellow-bordered scutes, giving it a unique appearance compared to other tortoises.
- Strong, elephant-like legs, well-adapted for digging burrows.
- Males tend to have longer tails and a concave plastron, while females have a flatter one.
- Native to the Bolsón de Mapimí region in northern Mexico, thriving in desert grasslands.
- Herbivorous diet, primarily feeding on grasses and cacti.
- Burrowing behavior, creating deep shelters to escape extreme temperatures.
Chaco Tortoise
The Chaco Tortoise, also known as the Argentine Tortoise, is native to the Chaco region of Argentina, Paraguay, and parts of Bolivia. It prefers dry forests and savannas and is often found in areas with sandy or loose soil.
Identification
- Scientific Name: Chelonoidis chilensis
- Shell Color: Light brown to grayish with visible growth rings
- Plastron: Pale yellow to cream
- Size: 10 to 14 inches
- Lifespan: 50 to 80 years
- Feet: Short, strong with visible scales
- Habitat: Dry forests, savannas, and scrubland
Behavior
It digs shallow burrows or uses existing shelters to escape extreme temperatures. Active during cooler mornings and evenings.
Diet
Herbivorous feeds on grasses, cactus pads, and various broadleaf plants. Occasionally consumes fallen fruits.
The Chaco Tortoise (Chelonoidis chilensis), also known as the Argentine Tortoise, has several distinct features that help identify it:
- Small to medium size, typically measuring 20 to 30 cm in length.
- High-domed shell, ranging from light brown to dark olive, often with yellowish or reddish hues.
- Slightly serrated shell rim, with dark pigment at the back edge of each scute.
- Plastron (bottom shell) is usually lighter in color, sometimes featuring dark triangular markings.
- Front limbs covered in large, angular scales, with enlarged tubercles on the thighs.
- Males have a longer tail and a concave plastron, while females have a flatter one.
- Native to Argentina, Bolivia, and Paraguay, primarily found in dry forests, scrublands, and grasslands.
- Herbivorous diet, feeding on grasses, shrubs, fruits, and cactus pads.
- Burrowing behavior, using sandy soil to create shelters for protection and hibernation.
Yellow-footed Tortoise
Found throughout the Amazon Basin, the Yellow-footed Tortoise is a rainforest species recognized for the yellow scales on its front legs. It prefers humid environments and is one of the largest tortoise species in South America.
Identification
- Scientific Name: Chelonoidis denticulata
- Shell Color: Dark brown to black with orange or yellow markings
- Plastron: Dark with light blotches
- Size: 16 to 28 inches
- Lifespan: 50 to 80 years
- Feet: Distinct yellow or orange scales on forelegs
- Habitat: Humid lowland forests, especially near water sources
Behavior
Yellow-footed Tortoises are generally solitary. They are more active that can box turtle lifespan during humid periods and often roam in search of fallen fruit.
Diet
Omnivorous — eats fruits, mushrooms, leaves, flowers, and occasionally insects or carrion. Fruits form the bulk of their diet.
The Yellow-footed Tortoise (Chelonoidis denticulatus), also known as the Brazilian Giant Tortoise, has several distinct features:
- Large, high-domed shell, typically yellowish-brown to dark brown, with black edges on each scute.
- Yellow scales on its front legs, distinguishing it from the Red-footed Tortoise, which has red scales.
- A light golden-brown shell, often with a slightly flattened shape.
- Males have longer tails and a concave plastron, while females have a flatter one.
- Three tooth-like projections on the upper jaw, giving it a unique facial structure.
- Native to the Amazon Basin, thriving in rainforests and tropical lowlands.
- Omnivorous diet, feeding on fruits, fungi, leaves, and even carrion.
Red-footed Tortoise
Native to northern South America, including countries like Brazil, Venezuela, and Colombia, the Red-footed Tortoise is a popular species in the pet trade due to its manageable size and vibrant coloration. It thrives in tropical and subtropical forests.
Identification
- Scientific Name: Chelonoidis carbonarius
- Shell Color: Dark brown or black with lighter centers on scutes
- Plastron: Yellow to tan with dark blotches
- Size: 10 to 16 inches
- Lifespan: 40 to 60 years
- Feet: Red or orange scales on limbs and head
- Habitat: Forest edges, savannas, and grasslands
Behavior
Active during warm, humid weather. Red-footed Tortoises often seek shade and are known to soak in shallow water.
Diet
Omnivorous — feeds on fruits, greens, flowers, fungi, and occasionally animal matter such as invertebrates.
The Red-footed Tortoise (Chelonoidis carbonarius) has several distinct features that make it easy to identify:
- Dark-colored, loaf-shaped carapace with lighter patches in the center of each scute.
- Bright red, orange, or yellow markings on its legs, tail, and head, which give it its name.
- Moderately domed shell, typically black or dark brown with radiating lighter lines.
- Males have longer tails and a concave plastron, while females have a flatter one.
- Omnivorous diet, consuming plants, fruits, fungi, and occasionally invertebrates.
- Native to South America, found in savannas, forests, and grasslands.
- Does not burrow, but prefers humid environments with dense vegetation.
Galápagos Tortoise
The Galápagos Tortoise is among the world’s largest tortoises and is endemic to the Galápagos Islands. These tortoises are icons of evolutionary study due to Charles Darwin’s observations.
Identification
- Scientific Name: Chelonoidis nigra (complex with multiple subspecies)
- Shell Color: Dark gray or brown
- Plastron: Dull yellow or tan
- Size: Up to 5 feet in length
- Lifespan: Over 100 years (some over 150)
- Feet: Thick, elephant-like legs for supporting heavy weight
- Habitat: Volcanic highlands and arid lowlands of the islands
Behavior
Very slow-moving and long-lived. They migrate short distances between moist and dry areas depending on the season.
Diet
Primarily herbivorous — feeds on grasses, cacti, fruits, and leafy vegetation.
The Galápagos Tortoise (Chelonoidis niger) is one of the largest and longest-living tortoises in the world. Here are some key features to identify it:
- Massive size, often reaching over 400 kg (880 lbs) and up to 6 feet in length.
- Two distinct shell types:
- Domed shells for tortoises living in humid, highland areas.
- Saddleback shells for those in dry, coastal environments, allowing them to stretch their necks to reach vegetation.
- Thick, sturdy legs with small air chambers in their shells to support their weight.
- Long necks, especially in saddleback varieties, helping them reach tall cacti.
- Slow-moving and herbivorous, feeding on grass, leaves, and cactus.
- Extremely long lifespan, often exceeding 100 years, with some individuals living up to 175 years.
Forest Hingeback Tortoise
Though not native to the U.S., this species occasionally crosses into Central American forest zones. It is native to Africa but sometimes appears in trade or migrates via human introduction.
Identification
- Scientific Name: Kinixys spp.
- Shell Color: Dark brown with hinged rear section
- Plastron: Pale with dark patches
- Size: 6 to 10 inches
- Lifespan: 30 to 50 years
- Feet: Small, suited for forest floors
- Habitat: Moist tropical forests
Behavior
Known for its ability to flex the back part of its shell downward, creating a “hinge.” Shy and reclusive.
Diet
Eats fallen fruit, mushrooms, leaves, and occasionally slugs or insects. Prefers damp, shaded areas.
The Forest Hingeback Tortoise (Kinixys erosa) has several unique features that set it apart:
- Hinged shell at the rear, allowing it to close partially for protection—an uncommon trait among tortoises.
- Elongated, dark brown to black carapace with a serrated rear edge.
- Medium to large size, reaching up to 40 cm (15.7 inches) in shell length.
- Males have longer tails and a concave plastron, while females have a flatter one.
- Omnivorous diet, feeding on fruits, leaves, fungi, invertebrates, and occasionally carrion.
- Excellent swimmer, often found near marshes and riverbanks in West and Central African rainforests.
- Burrowing behavior, spending much of its time hidden under roots and logs.
FAQs about American Tortoises
1. What is the difference between a turtle and a tortoise?
Tortoises live on land and have sturdy, dome-shaped shells with elephant-like feet, while turtles typically live in or near water and have flatter shells with webbed feet for swimming.
2. Are American tortoises endangered?
Yes, some species like the Bolson Tortoise and certain Galápagos Tortoise subspecies are endangered due to habitat loss, poaching, and climate change.
3. Can you keep a native tortoise as a pet in the U.S.?
It depends on the species and state laws. For example, the Gopher Tortoise is protected and cannot be kept without special permits. Always check local wildlife regulations.
4. How long do American tortoises live?
Most American tortoises live between 40 and 80 years. Larger species like the Galápagos Tortoise can live well over 100 years.
5. What do tortoises eat in the wild?
They are primarily herbivores, feeding on grasses, wildflowers, fruits, cacti, and leafy vegetation. Some species, like the Yellow-footed and Red-footed Tortoises, may occasionally eat fungi or small invertebrates.
