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Oustalet's chameleon

Oustalet's chameleon (Furcifer oustaleti), also known as the Malagasy giant chameleon, is the world's largest chameleon species by length, reaching up to 68.5 cm. It is native to Madagascar and inhabits a wide array of environments, from dry forests to urban settings, though it is less common in primary forest interiors. Males are typically grey or brown, while females can be more colorful, displaying red, yellow, and green.

Key Facts

  • Considered the world's largest chameleon species by maximum total length.
  • Native to Madagascar, with introduced populations in Kenya and the United States.
  • Inhabits diverse habitats including forests, savannas, agricultural areas, and urban settings.
  • Diet includes large insects, small vertebrates, and notably, fruit from several plant species.
  • Males are generally larger and more robust than females.
  • Possesses a high casque on its head and a dorsal crest of spines.
Oustalet's chameleon
Scientific Name
Furcifer oustaleti
Family
Chamaeleonidae
Common Names

Malagasy Giant Chameleon, Oustalet's Chameleon

Geographic Distribution

Madagascar, Kenya, United States

Physical Description
  • Maximum Total Length of 68.5 cm , Making It the World's Largest Chameleon By This Measurement.
  • Relatively Slender Build, With Larger Males Weighing 400–500 g.
  • Females Are Smaller, Reaching Up To About 40 cm Total Length.
  • Head Bears A High Casque With Several Crests.
  • A Dorsal Crest Consisting of 45 Or More Small Triangular Spines Runs Along the Spine.
  • Coloration Is Variable: Males Are Usually Grey Or Brownish, Sometimes With Reddish-Orange Feet Or Underparts.
  • Females Are Often More Colorful, With Base Colors Or Markings In Red, Yellow, and Green.
  • Female Eyelids Can Sometimes Be Blue.
Diet

Large Insects, Small Birds, Small Reptiles, Fruit

Lifespan Years
Not specified in text
Behavioral Traits
  • Acquires Prey With A Long, Muscular Tongue.
  • Seizes Fruit Directly With Jaws, But Can Also Use Zygodactyl Feet To Grasp Fruit-Bearing Twigs.
  • Exhibits Food Manipulation With Forelimbs, A Behavior Otherwise Documented In Some Monitor Lizards and Chamaeleo Namaquensis.

About Oustalet's chameleon

Oustalet's chameleon, scientifically known as Furcifer oustaleti and also referred to as the Malagasy giant chameleon, holds the distinction of being the world's largest chameleon species based on its impressive maximum total length. This large reptile is native to the island of Madagascar, where it inhabits a remarkably diverse range of environments. Its presence extends beyond its native range, with introduced populations noted near Nairobi in Kenya and in Miami-Dade County, United States, though its current status in these introduced areas remains uncertain.

Distribution and Habitat

Furcifer oustaleti is found throughout Madagascar, demonstrating a remarkable adaptability to various habitats. These include dry deciduous forests, humid evergreen forests, montane savannas, and even degraded vegetation found within villages and agricultural areas. While it can be found in such varied settings, it is notably less common in the interior of primary forests, preferring the edges of these habitats.

Physical Characteristics

By measurement of total length, including the tail, Oustalet's chameleon can reach up to 68.5 cm (27 inches). Despite its length, it possesses a relatively slender build, and its weight is surpassed by other, more robust large chameleon species. Large adult males typically weigh between 400–500 g (14–18 oz), with females consistently weighing less and remaining considerably smaller in total length, reaching approximately 40 cm (16 inches). The head of this species is adorned with a high casque and several crests. A distinctive dorsal crest, composed of 45 or more small, triangular spines, runs along its spine.

The coloration of Oustalet's chameleon is quite variable. Males are generally a shade of grey or brown, occasionally displaying reddish-orange coloration on their feet or underparts. Females tend to be more colorful and variable, with possible base colors or markings in red, yellow, and green. In some instances, the eyelids of females can be blue.

Diet and Behavior

The diet of Furcifer oustaleti is varied, comprising invertebrates such as large insects, and some vertebrates like small birds and reptiles. A notable aspect of its diet is the consumption of fruit, a behavior observed in several chameleon species. Oustalet's chameleon regularly consumes the fruit of plants such as Grangeria porosa, Chassalia princei, and Malleastrum gracile. Prey is typically captured using its long, muscular tongue, while fruit is generally seized directly with the jaws. However, there are recorded exceptions where individuals have been observed grasping fruit-bearing twigs with their zygodactyl feet to bring them closer for consumption, a level of food manipulation with the forelimbs that is rarely documented in reptiles.

Reproduction

Oustalet's chameleon is oviparous, meaning it reproduces by laying eggs.

Source: Wikipedia ↗

Frequently Asked Questions

What is the largest chameleon species?

Oustalet's chameleon (Furcifer oustaleti) is generally considered the world's largest species of chameleon based on maximum total length, which can reach up to 68.5 cm. While other species like Parson's chameleon and Meller's chameleon have been claimed to reach greater lengths, these claims remain unverified.

Where is Oustalet's chameleon found?

Oustalet's chameleon is endemic to Madagascar and is found throughout the island. It has also been introduced near Nairobi in Kenya and in Miami-Dade County in the United States, although its status in these introduced locations is unclear.

What kind of habitats does Oustalet's chameleon prefer?

This species inhabits a very wide range of environments, including dry deciduous forests, humid evergreen forests, montane savannas, degraded forests, agricultural areas, and even urban settings. They are typically found at forest edges rather than deep within the forest interior.

What does Oustalet's chameleon eat?

The diet of Oustalet's chameleon is varied and includes invertebrates like large insects, as well as some vertebrates such as small birds and reptiles. Uniquely among chameleons, they are also known to regularly consume fruit from several plant species.

How large do Oustalet's chameleons get?

Adult males can reach a maximum total length of 68.5 cm, making them the longest chameleon species. Females are considerably smaller, reaching up to about 40 cm in total length. Adult males typically weigh between 400–500 g.

What is the difference between male and female Oustalet's chameleons?

Males are generally larger and more robust than females. In terms of coloration, males are usually grey or brownish, sometimes with reddish-orange feet or underparts. Females are often more colorful, with base colors or markings in red, yellow, and green, and can sometimes have blue eyelids.