Explore the Amazing World of Reptiles at Reptile-Guide.com

Everything You Need To Know About Reptile Guide

Green Iguana

Facts About Green Iguanas: Diet, Habitat & Pictures

Have you ever heard of the green iguana? These fascinating creatures are native to Central and South America, where they play an important role in their ecosystem. However, due to their popularity as pets, green iguana populations have exploded in many areas outside of their native range, making them an invasive species. In fact, they are considered a pest in places like Florida and the Caribbean.

Green iguanas can grow up to 6 feet long and weigh over 20 pounds. They have distinctive green scales and a long tail that helps them balance while climbing trees. Despite their popularity as pets, owning a green iguana is not for everyone. They require specialized care and can live up to 20 years.

So let’s dive into the world of these fascinating reptiles!

General Information about Green Iguana

Green iguanas are fascinating reptiles that belong to the family Iguanidae and are scientifically known as Iguana iguana. They are primarily found in Central and South America, Mexico, and some parts of the Caribbean. These beautiful creatures have long and slender bodies with a crest of spines running down their back.

Scientific Classification

Green iguanas belong to the Kingdom Animalia, Phylum Chordata, Class Reptilia, Order Squamata (scaled reptiles), Suborder Iguania (iguanid lizards), Family Iguanidae (iguanid lizards), Genus Iguana, and Species Iguana iguana.

Physical Appearance

Green iguanas are one of the largest species of lizards in the world. They can grow up to 6 feet in length from head to tail and weigh around 11 pounds. Their skin color varies from bright green to dull grayish-green or brownish-green depending on their age and habitat. Their body is covered with small scales that overlap each other like shingles on a roof.

One unique feature of green iguanas is their dewlap a flap of skin under their chin that they use for thermoregulation. When they get too hot or cold, they extend or retract their dewlap to regulate their body temperature.

Another distinguishing characteristic is the crest of spines running down their back which helps them defend themselves against predators. The spines are also used for communication during courtship displays.

Green iguanas have strong legs with sharp claws that help them climb trees easily. They also have long tails which make up almost half of their total length. Their tails serve various purposes such as balancing when climbing trees or swimming in water.

Interesting Facts

  • Green iguanas are herbivores and feed on leaves, fruits, flowers, and vegetables. They have a specialized digestive system that allows them to extract nutrients from tough plant material.
  • They are excellent swimmers and can hold their breath for up to 30 minutes underwater.
  • Green iguanas are diurnal (active during the day) and spend most of their time basking in the sun to regulate their body temperature.
  • These reptiles have a third eye called the parietal eye located on top of their head which helps them detect changes in light intensity and avoid predators.
  • Female green iguanas lay 20 to 70 eggs at a time and bury them in sand or soil. The eggs hatch after about 2 months, and the baby iguanas are fully independent of birth.

Habitat and Diet of Green Iguana

Green Iguanas


Green iguanas are fascinating creatures that are native to Central and South America. They can be found in a variety of habitats, including forests, mangroves, and near bodies of water. These reptiles are known for their ability to adapt to different environments, which is why they have been able to thrive in many parts of the world.

Green iguanas prefer areas with plenty of vegetation where they can find food and shelter. In the wild, they often live in trees or on the ground near rivers or streams. They also tend to prefer areas with high humidity levels as this helps them regulate their body temperature.

In captivity, it’s important to provide green iguanas with an environment that mimics their natural habitat as closely as possible. This means providing plenty of climbing structures such as branches or logs, along with areas for basking under heat lamps.


Green iguanas are herbivores, which means that they primarily eat plant material. Their diet consists mainly of leaves, fruits, and flowers. Some examples of plants that green iguanas commonly eat include:

  • Hibiscus flowers
  • Dandelion greens
  • Collard greens
  • Mustard greens
  • Kale

While green iguanas are mostly herbivorous, they have been known to occasionally eat insects and small animals such as snails or spiders. Younger iguanas may also require more protein-rich foods than older ones.

It’s important to note that not all plants are safe for green iguanas to eat. Some common household plants such as philodendrons or ivy can be toxic if ingested by these reptiles. It’s always best to do your research before feeding any new plant material to your pet.

Feeding Tips

If you’re considering getting a green iguana as a pet, it’s important to know what to feed them. Here are some tips for feeding your green iguana:

  1. Offer a variety of plant materials: Green iguanas need a varied diet to stay healthy. Try offering different types of greens and fruits to keep things interesting.
  2. Avoid high-fat foods: While green iguanas may occasionally eat insects or small animals, it’s important not to offer them too often. These foods are high in fat and can lead to health problems such as obesity.
  3. Provide calcium supplements: Green iguanas require plenty of calcium in their diet to maintain strong bones. You can provide this through supplements or by offering calcium-rich foods such as kale or collard greens.
  4. Keep an eye on portion sizes: It’s easy to overfeed green iguanas, which can lead to health problems down the line. Make sure you’re providing appropriate portion sizes based on your pet’s size and age.

Florida Distribution of Green Iguana

Green iguanas are fascinating creatures that are native to Central and South America. However, they have been introduced to various parts of the world, including Florida.

Where are Green Iguanas in Florida?

Green iguanas are found throughout the state of Florida. However, they are most commonly found in southern Florida, including the Florida Keys. They prefer warm and humid climates and can be found near water sources such as canals, lakes, and ponds.

How Did the Green Iguana Get to Florida?

Green iguanas were first introduced to Florida as pets. Many people bought them as exotic pets but later released them into the wild when they became too difficult to care for or when they outgrew their enclosures. These releases led to an increase in the population of green iguanas in Florida.

When Did the Green Iguana Get to Florida?

The first recorded sighting of a green iguana in Florida was in 1960. Since then, their population has grown significantly due to introductions by pet owners who no longer wanted them or could not keep up with their care.

Why Are Green Iguanas Considered an Invasive Species?

Green iguanas are considered an invasive species because they compete with native wildlife for food and habitat. They also pose a threat to native plants by eating leaves and flowers. Their burrows can damage infrastructure such as sidewalks and seawalls.

What Can Be Done About Green Iguanas in Florida?

Florida Fish and Wildlife Conservation Commission recommends that residents do not release unwanted pets into the wild. Instead, contact a reptile rescue organization or find someone who is willing to adopt your pet before considering releasing it into nature.

If you spot a green iguana on your property, you can try to scare it away by making loud noises or spraying it with a hose. However, if the population of green iguanas becomes too large, professional removal services may be necessary.

When is Breeding Season for Green Iguanas?

Breeding season for green iguanas typically occurs from January to March. During this time, males become more aggressive and territorial as they compete with females. Females lay clutches of eggs in burrows or other protected areas and will defend their nests against predators.

Impact of Green Iguanas on Florida’s Ecosystem


Invasive Species in Florida

Green iguanas are an invasive species that have become a significant problem in Florida. These reptiles, which are native to Central and South America, were first introduced to the state as pets. However, over time, many escaped or were released into the wild, where they quickly established themselves as a thriving population.

Competition with Native Species

One of the biggest problems with green iguanas is that they compete with native species for resources. For example, they consume large quantities of vegetation, which can be detrimental to local plant populations. This can lead to soil erosion and changes in nutrient cycling patterns.

In addition to their impact on plants, green iguanas also compete with native animals for food and habitat. For example, they may eat the eggs of sea turtles or nest in areas that are typically used by burrowing owls.

Damage to Infrastructure

Another issue associated with green iguanas is their tendency to damage infrastructure. For example, they may dig burrows under roads or buildings, which can weaken structures and cause them to collapse. They may also chew on wires or other materials found in homes or businesses.

The cost of repairing this damage can be significant and can add up quickly over time.

Disease Transmission

Finally, green iguanas are known to carry diseases that can be transmitted to other animals. For example, they may carry salmonella bacteria or parasites that can infect dogs or cats.

This poses a risk not only to domestic animals but also to wildlife populations in general.

What You Can Do

If you live in Florida and want to help cut down on invasive species like green iguanas there are several things you can do:

  • Don’t release unwanted pets into the wild.
  • If you see a green iguana in your yard or neighborhood report it immediately.
  • Consider planting native vegetation in your yard to help support local plant populations.
  • Support conservation efforts that aim to protect native species and ecosystems.

By taking these steps, you can help protect Florida’s delicate ecosystem from the negative impacts of invasive species like green iguanas.

Negative Economic Importance for Humans

Green iguanas, scientifically known as Iguana iguana, are a popular pet species that have been introduced to various regions outside their natural habitat in Central and South America. While they may seem like harmless creatures, green iguanas can cause significant damage to infrastructure and landscaping, posing a threat to the economy and human activities.

Damage to Infrastructure and Landscaping

Green iguanas are arboreal reptiles that spend most of their time on trees but also venture onto the ground. They have sharp claws that enable them to climb walls, fences, and other structures with ease. Unfortunately, this behavior makes them a nuisance for homeowners who find them damaging roofs, gutters, siding, and other parts of buildings.

Moreover, green iguanas feed on vegetation such as flowers, fruits, leaves, and bark. This feeding habit can result in significant damage to gardens and agricultural crops. For instance:

  • Green iguanas can strip entire fruit trees of their leaves or fruit.
  • They can dig up bulbs or tubers from gardens.
  • They can eat ornamental plants such as hibiscus or bougainvillea.

All these actions lead to economic losses for farmers who rely on these crops for income or homeowners who invest in maintaining beautiful landscapes.

Predation on Native Species

Another negative impact of green iguanas is their effect on biodiversity. As an invasive species in non-native habitats such as Florida or Hawaii, green iguanas have been known to prey on native species such as birds’ eggs or hatchlings. This predation not only affects the survival rates of these animals but also disrupts the food chain and ecosystem balance.

For example:

  • Green iguanas have been observed eating eggs from endangered sea turtles nesting sites in Florida.
  • They have also been seen attacking birds’ nests in Hawaii’s forest reserves.

These actions pose a threat to the conservation of native species and their habitats, which can have long-term economic and ecological consequences.

Economic Impact of Controlling Green Iguana Populations

Given the negative effects of green iguanas on infrastructure, landscaping, and biodiversity, controlling their populations becomes necessary. However, this effort comes at a cost. For instance:

  • Hiring professionals to remove green iguanas from buildings or gardens can be expensive.
  • Implementing measures such as fencing or netting to prevent green iguanas from accessing certain areas can also be costly.
  • Conducting research on effective control methods that minimize harm to other animals or the environment requires funding.

Moreover, since green iguanas are prolific breeders, with females laying up to 70 eggs per year, controlling their populations is an ongoing process that requires sustained efforts.

Positive Economic Importance for Humans

Green iguanas are fascinating creatures that have become increasingly popular as pets, and their economic importance to humans goes beyond the pet industry. Here are some ways in which green iguanas contribute positively to human life and development:

Bred and Sold as Pets

The pet industry is a significant contributor to the global economy, with an estimated value of over $200 billion in 2020. Green iguanas are one of the many species that have been bred and sold as pets, contributing to this economic growth.

As pets, green iguanas require specialized care, including proper diet and living conditions. This has created a market for pet food, accessories, and habitats designed specifically for these reptiles. The demand for such products has led to job creation in various sectors of the economy.

Potential Food Source

While not commonly consumed in most parts of the world, green iguanas have been studied as a potential source of protein in some populations. In regions where traditional sources of protein are scarce or expensive, green iguana meat could provide a viable alternative.

In fact, in some parts of South America and the Caribbean, green iguana meat has long been considered a delicacy. However, it is important to note that hunting and consuming wild populations can lead to environmental changes and population decline.

Permit System for Capturing and Selling

In North America, where green iguanas are not native but have established feral populations in some areas like Florida state; capturing them requires permits. The permit system has resulted in economic benefits for those involved in their breeding and sale.

For example, breeders can obtain permits to capture wild males during breeding season when they come out into open areas looking for females; breeders then sell offspring from these captured males on the legal market rather than from illegally captured or smuggled individuals. This results not only in economic benefits but also in the protection of wild populations from over-harvesting.

The Fascinating World of Green Iguana

In conclusion, the green iguana is a fascinating reptile with unique physical features and characteristics. It is scientifically classified as Iguana iguana and can be found in various habitats across South America, Central America, Mexico, and the Caribbean. In Florida, they are considered an invasive species that has a negative impact on the ecosystem and poses risks to human health.

Green iguanas are herbivores that feed on leaves, flowers, fruits, and vegetables. They require specific environmental conditions to thrive and reproduce. Unfortunately, their introduction into Florida has caused significant damage to native plants and wildlife.

While green iguanas have no positive economic importance for humans in Florida, they are often kept as pets in other parts of the world due to their unique appearance. However, owning a pet iguana requires proper care and maintenance to ensure their well-being.

If you encounter a green iguana in Florida or any other region where it is not native, it is important not to interfere with its habitat or attempt to capture it without proper training. Contacting local wildlife authorities is recommended for safe removal.


Q: Can I keep a green iguana as a pet?

A: Yes, you can keep a green iguana as a pet if you have experience caring for reptiles. It’s important to provide them with a suitable environment and diet to ensure their health.

Q: Are there any risks associated with owning a green iguana?

A: Yes, there are several risks associated with owning an iguana including bites or scratches from handling them improperly and potential transmission of salmonella bacteria.

Q: Why are green iguanas considered invasive in Florida?

A: Green iguanas were introduced into Florida through the exotic pet trade but escaped or were released into the wild where they have reproduced rapidly and caused significant damage to native plants and wildlife.

Q: What should I do if I encounter a green iguana in Florida?

A: It is important not to interfere with their habitat or attempt to capture them without proper training. Contacting local wildlife authorities is recommended for safe removal.

Q: How can I help prevent the spread of green iguanas in Florida?

A: You can help prevent the spread of green iguanas by not releasing them into the wild, reporting sightings to local authorities, and properly disposing of unwanted pets.

Leave a Reply

Your email address will not be published. Required fields are marked *