Iguanidae

Marine-Iguana-Espanola

Fiji banded iguana in Vienna Zoo on 2013-05-12

Ctenosaura defensor (6138652398)

Conolophus subcristatus (North Seymour 1)

Black Spiny-tailed Iguana (16422875267)

Iguanidae is a family of lizards designated under the order Squamata, which is comprised of lizards and snakes. The family Iguanidae includes a diverse group of lizards, known for their distinct physical characteristics and widespread geographical distribution. Members of this family are commonly referred to as iguanas.

Description

Iguanidae species vary greatly in size, color, and behavior. They typically have stout bodies, long tails, and often display vibrant colors. Some members possess unique adaptations such as dewlaps (a fold of skin on the throat) which are used for communication and thermoregulation. The physical adaptations of Iguanidae members, such as sharp claws and strong limbs, facilitate their arboreal or terrestrial lifestyles.

Habitat and Distribution

Iguanidae lizards are found in a wide range of habitats, from tropical rainforests and deserts to aquatic environments. Their distribution spans across the Americas, from the southern United States to the southern tip of South America. Some species have also been introduced to regions outside their native range, often resulting in ecological challenges.

Diet

The diet of Iguanidae species is diverse, ranging from strictly herbivorous to omnivorous. Many iguanas, such as the Green Iguana, primarily consume plant material, while others may include insects and small animals in their diet. The variation in diet reflects the adaptability of Iguanidae lizards to different ecological niches.

Reproduction

Iguanidae lizards exhibit a variety of reproductive strategies, including both oviparous (egg-laying) and viviparous (live-bearing) methods. The reproductive behavior of these lizards often involves complex rituals, including visual displays and territoriality.

Conservation

Several species within the Iguanidae family are considered to be at risk due to habitat destruction, hunting, and the pet trade. Conservation efforts are in place for some species, aiming to protect their natural habitats and regulate trade.

Classification

The classification of the Iguanidae family has undergone significant changes over time. With advances in molecular genetics, some species traditionally classified within this family have been moved to other families or subfamilies. The family is now more narrowly defined than in the past, but still includes a variety of species that share common evolutionary traits.

Notable Species

• Green Iguana (Iguana iguana) - Perhaps the most recognized species, known for its vibrant green color and popularity in the pet trade.
• Marine Iguana (Amblyrhynchus cristatus) - Unique among modern lizards for its marine lifestyle, found exclusively in the Galápagos Islands.
• Desert Iguana (Dipsosaurus dorsalis) - Adapted to hot, arid environments in the southwestern United States and Mexico.

See Also

• Reptile
• Squamata
• Herpetology