Gray's spiny-tailed iguana
Not endangered in native territory (as per text)·Oviparous (egg-laying)
Gray's spiny-tailed iguana, also known as the black iguana, is a sizable iguanid lizard native to Mexico and Central America. It is characterized by its distinctive black, keeled scales on its tail and a crest of spines running down its back. Primarily herbivorous, these diurnal lizards inhabit rocky areas with nearby trees and are known for their remarkable speed.
Key Facts
- ›Largest species in the genus Ctenosaura.
- ›Males can reach up to 1.3 meters in length.
- ›Primarily herbivorous, but juveniles are insectivorous.
- ›Known as the world's fastest lizard, with a top speed of 34.6 km/h.
- ›Females lay clutches of up to 30 eggs in communal nesting sites.
- ›Farmed in parts of Central America for food and the pet trade.
Black Iguana, Black Spiny-Tailed Iguana, Chicken of the Trees
Mexico, Central America, Caribbean Islands, Pacific Islands, Introduced To Florida, Introduced To Bahamas, Introduced To Venezuela
- Largest Member of the Genus Ctenosaura.
- Distinctive Black, Keeled Scales On the Tail.
- Crest of Long Spines Down the Center of the Back.
- Males Can Grow Up To 1.3 Meters In Length.
- Females Are Slightly Shorter, 0.8–1 Meter .
- Adults Usually Have A Whitish Gray Or Tan Ground Color With 4–12 Dark Dorsal Bands.
- Males Develop Orange Coloration Around the Head and Throat During Breeding Season, With Blue and Peach Highlights On Jowls.
Flowers, Leaves, Stems, Fruit, Rodents, Bats, Frogs, Small Birds, Smaller Iguanas, Eggs, Arthropods, Insects
- Excellent Climbers.
- Prefer Rocky Habitats With Crevices and Basking Rocks.
- Diurnal .
- Fast-Moving, Using Speed To Escape Predators.
- Will Lash With Tails and Bite If Cornered.
- Males Court Females With Head Bobbing and Flick-Licking.
- Females May Reject Forced Copulation Attempts.
- Exhibit Communal Nesting Behavior.
Not Specified In Text
- Potential Threat To Endangered Native Species In Introduced Habitats
- Hunted For Food and Pet Trade
About Gray's spiny-tailed iguana
Gray's spiny-tailed iguana, scientifically known as Ctenosaura similis and commonly referred to as the black iguana or black spiny-tailed iguana, is a prominent species of iguanid lizard native to Mexico and Central America. It is distinguished by its robust build, a crest of prominent spines running along its back and tail, and striking black, keeled scales on its tail. This species holds the distinction of being the largest within the Ctenosaura genus, with males capable of reaching impressive lengths of up to 1.3 meters.
Habitat and Distribution
The black spiny-tailed iguana thrives in a variety of environments, including grasslands, forests, and rocky terrains that offer ample basking sites and hiding places. Its native range spans from southern Mexico southward through Central America to Panama, occurring at elevations up to approximately 1,320 meters. The species is also found on numerous islands along both the Caribbean and Pacific coasts. Notably, Gray's spiny-tailed iguana has been introduced and established populations in southern Florida, the Bahamas, and parts of Venezuela, where its adaptability to both natural and disturbed areas poses potential challenges to native ecosystems.
Diet and Behavior
Primarily herbivorous, Gray's spiny-tailed iguana's diet consists of flowers, leaves, stems, and fruits. However, they are opportunistic omnivores, readily consuming smaller animals such as rodents, bats, frogs, birds, eggs, and arthropods, particularly when young. These lizards are diurnal and are renowned for their exceptional speed, recognized by the Guinness Book of World Records as the world's fastest lizard, capable of reaching sprint speeds of up to 34.6 kilometers per hour. Despite their speed, they will defend themselves by lashing their tails and biting if cornered.
Reproduction
Reproduction typically commences at the start of the dry season. Males engage in courtship rituals involving head bobbing and licking females. Following successful mating, females migrate to communal nesting sites, where they lay clutches of up to 30 eggs. The incubation period lasts approximately 90 days, after which the hatchlings emerge from the sand. Juveniles mature and become reproductively capable within two to three years.
Commercial Use and Status
In some Central American regions, Gray's spiny-tailed iguana is farmed for consumption, earning the colloquial name "chicken of the trees," and is also exported for the pet trade. Despite being hunted, the species is not considered endangered within its native range. Introduced populations, however, are noted for their potential impact on native wildlife due to their feeding habits.
Source: Wikipedia ↗
Frequently Asked Questions
What is the scientific name for Gray's spiny-tailed iguana?
The scientific name for Gray's spiny-tailed iguana is *Ctenosaura similis*. This name was given by British zoologist John Edward Gray in 1831. The genus name, *Ctenosaura*, refers to the comb-like spines on its back and tail.
Where does Gray's spiny-tailed iguana live?
Gray's spiny-tailed iguana is native to southern Mexico and Central America, with a discontinuous distribution along the Atlantic coast and a continuous distribution along the Pacific coast. It is also found on numerous islands in the Caribbean and Pacific and has been introduced to parts of Florida, the Bahamas, Colombia, and Venezuela.
What does Gray's spiny-tailed iguana eat?
This species is primarily herbivorous, feeding on flowers, leaves, stems, and fruits. However, they are opportunistic feeders and will consume smaller animals, including rodents, bats, frogs, birds, smaller iguanas, eggs, and arthropods. Juveniles tend to be more insectivorous.
What are the physical characteristics of Gray's spiny-tailed iguana?
Gray's spiny-tailed iguana has distinctive black, keeled scales on its tail and a crest of long spines down its back. Adults typically have a whitish gray or tan ground color with dark dorsal bands. Males can develop orange coloration on their head and throat during the breeding season.
How fast can Gray's spiny-tailed iguana run?
Gray's spiny-tailed iguana is recognized as the world's fastest lizard. It has a maximal sprint speed recorded at 34.6 kilometers per hour (21.5 mph), which it uses to escape predators.
How does Gray's spiny-tailed iguana reproduce?
Mating occurs at the beginning of the dry season, with males courting females. After about eight to ten weeks, females lay clutches of up to 30 eggs in communal nesting sites. The eggs hatch in 90 days, with hatchlings digging their way out of the sand.
Is Gray's spiny-tailed iguana dangerous to humans?
While Gray's spiny-tailed iguana can bite and lash with its tail if cornered, it is not considered inherently dangerous to humans. However, introduced populations in Florida may pose a threat to native endangered species due to their opportunistic feeding habits.
Related Lizards
Black spiny-tailed iguana
The black spiny-tailed iguana (Ctenosaura similis) is a large iguanid lizard native to Mexico and Central America, known for the distinctive black, keeled spines on its tail. It inhabits grasslands and forests, and is an excellent climber, capable of remarkable speeds. While primarily herbivorous, it will opportunistically consume small animals and eggs.
Puerto Rican crested anole
The Puerto Rican crested anole, also known as the common Puerto Rican anole, is a small to medium-sized lizard native to Puerto Rico and the Virgin Islands, with introduced populations elsewhere. Males are distinguished by a prominent fin-like crest running down their tail, while females possess a smaller version of this feature. These lizards are commonly found in a variety of habitats, including urban areas, and are known for their ability to change color.
Anolis cristatellus
Anolis cristatellus, commonly known as the crested anole or common Puerto Rican anole, is a small to moderately-sized lizard native to Puerto Rico and the Virgin Islands. Males are distinctive for their prominent caudal crest and colorful dewlap, used in dominance displays and mating rituals. This adaptable species thrives in various habitats, including urban environments, and is known for its ability to change color.