How long do iguanas live

When you think about iguanas, the first question that comes to your mind is: How long do iguanas live? It is so remarkable to see such fascinating creatures with such striking appearances and unique behaviors. Surprisingly, they have a lengthy lifespan. It is okay if you are curious about them or adopting one as a pet, but understanding their lifespan is important.

Let's dig deeper, know some surprising facts, and also understand the things that influence how long an iguana can live and what you can do to maximize it.

What is an iguana?

What is an iguana

An iguana is a large, herbivorous lizard that is found primarily in tropical areas of central and south America. They are known for their tails and spiny crests on their backs. Iguanas are excellent climbers and spend most of their time in trees. They are popular as exotic pets. They are cold-blooded reptiles. They have a calm demeanor and depend on external heat sources to regulate body temperature.

Types of iguana

Type

Description

Native

Green Iguana

Most common, large and herbivorous

Central and South America

Marine Iguana

Swims, feeds on algae, unique to water environments

Galapagos Islands

Lesser Antillean Iguana

Endangered species, smaller in size

Caribbean Islands

Fiji Banded Iguana

Brightly colored, rare, arboreal

Fiji Islands

How long do iguanas live?

How long do iguanas liveiguanas can live for a good amount of time. they should just be well cared for. on average, an iguana can live between 12 and 20 years. even though some have been known to reach the age of 25 years with best care. along with that, lifespan may decrease due to environmental threats, predators and a lack of food sources.

iguana type

lifespan(captivity)

lifespan (wild)

green iguana

15-20 years

8-12 years

lesser antillean iguana

12-15 years

8-10 years

galapagos lund iguana

up to 25 years

10-15 years

average lifespan in captivity: 12-20 years

Exceptional lifespan in captivity - Up to 25 years

Lifespan in the wild - 8-12 years

What is influencing iguana lifespan?

iguana lifespan

 

The upcoming factors come into play when determining how long an iguana can live.

One of the main factors affecting how long an iguana lives is its diet. They are herbivores and feed on leafy greens, fruits and vegetables. Poor diet can decrease their lifespan.

→ Optimal diet: Kale, collards, mango, papaya, carrots and squash

→ Avoid: animal protein, dairy, overly processed foods

  • Habitat:

Iguanas need a specific environment to live. The place should mimic their natural habitat with the right balance of heat, humidity and space. They should have plenty of space to climb and hide.

→ Temperature: 85-95°F during the day, 75-80°F at night

→ Humidity: 70-80%

→ Size of Space: 6-8 feet long

  • Veterinary care:

Regular checkups with a reptile vet can extend an iguana's life. Issues like parasites, infections, and malnutrition can go unnoticed without professional care.

Iguana diet

Iguana food

Examples

Percentage of diet

Leafy greens

Collard greens, dandelion greens, kale

50-60%

Vegetables

Squash, bell peppers, carrots, cucumbers

20-30%

Fruits

Mangoes, papayas, strawberries

10-15%

Supplement

Calcium powder

As needed

Water

Fresh water daily

Essential

What can iguanas eat?

Food item

Can Iguanas eat?

Can iguanas eat apples?

Yes

Can iguanas eat bananas?

Yes

Can iguanas eat watermelon?

Yes

Can iguanas eat tomatoes?

Yes

Can iguanas eat grapes?

Yes

How big do iguanas get?

How big do iguanas get

One of the fascinating aspects of iguanas is their size. The size of an iguana correlates with its lifespan. Larger iguanas tend to have a longer lifespan. Let’s understand the sizes on the basis of species.

Iguana species

Maximum length

Maximum weight

Green Iguana

6-7 feet

15-20 pounds

Lesser Antillean Iguana

4-5 feet

8-10 pounds

Galápagos Land Iguana

5-6 feet

20-25 pounds

Wild vs. Captivity: How long can iguana live?

The difference in lifespan between wild and captive iguanas is significant. While captive iguanas live up to 20 to 25 years, wild iguanas > face many challenges that reduce their lifespan to about 8 to 12 years.

Factors shortening lifespan in the wild:

⇒ predation by birds, snakes and other animals

⇒ environmental hazards like storms and habitat destruction

⇒ scarcity of food and water during dry seasons

Iguana VS Lizard

Iguana VS Lizard

Feature

Iguanas

Other Lizards

Size

Larger (up to 6 feet)

Varies (a few inches to a few feet)

Diet

Herbivorous (mostly plants)

Carnivorous, herbivorous, or omnivorous

Habitat

Tropical regions (rainforests, islands)

Varied (deserts, forests, urban areas)

Tail

Varied (deserts, forests, urban areas)

Varies (some used for fat storage)

Behavior

More territorial

Varies, less territorial in some species

Are iguanas dangerous, or do iguanas bite?

Although iguanas are generally harmless, they can become defensive when threatened. The common question that comes up is “do iguanas bite?”. Yes, they bite, but it is usually in self-defense only. We should understand their behavior to avoid any accidents and to make sure there is a harmonious relationship.

  • Aggressive behavior: rare, mostly in self-defense.
  • Do iguanas bite? - Yes, but bites are very rare and mostly non-serious.
  • Are iguanas dangerous? - No, but they should be handled carefully.

Where to buy an iguana?

Where to buy an iguana

You must now be thinking that I want an iguana now, right? Buying an iguana involves several steps to ensure you get a healthy pet and are prepared to care for it properly. Here’s the process:

1. Research and Preparation

  • Understand Iguana Care – Iguanas require specific diets, large enclosures, UVB lighting, and heat sources.

  • Check Local Laws – Some places regulate or prohibit iguana ownership.

  • Decide on a Species – The most common pet iguana is the Green Iguana, but other species exist (e.g., Blue, Red, Rhino).

  • Plan for a Large Enclosure –

2. Finding a Reputable Seller

  • Pet Stores – May have iguanas, but often lack proper care knowledge.
  • Breeders > Usually provide healthier, captive-bred iguanas.
  • Rescue Centers– Many iguanas are abandoned and need rehoming.
  • Exotic Pet Expose– A good place to meet breeders and see the iguanas firsthand.

3. Inspecting the Iguana Before Buying

Check for Health Issues:

  • Bright, alert eyes (no swelling or discharge)

  • Smooth, intact skin (no sores or missing scales)

  • Strong, steady movement (no shaking or lethargy)

  • No mites or parasites

  • Proper tail and toes (not broken or missing)

4. Purchasing and Transporting the Iguana

  • Negotiate Price – Prices vary by age, species, and breeder reputation.
  • Get a Secure Carrier– Use a ventilated box or small travel cage.
  • Keep Warm – Maintain 75-85°F during transport to prevent stress.

5. Setting Up the Iguana’s New Home

  • Large Enclosure – At least 6x6 feet for adults.
  • UVB Light and Heat Source – Essential for bone health.
  • Proper Diet – Iguanas eat leafy greens, fruits, and veggies (NO animal protein).
  • Humidity and Water – Provide a large water bowl and mist enclosure daily.

6. Iguana Care and Vet Check

  • Schedule a Vet Visit – Ensure your iguana is healthy and parasite-free.
  • Monitor Behavior– A healthy iguana should be active, eating, and basking regularly.
  • Handle with Care– Iguanas need time to trust their owner; avoid sudden movements.

Summing Up!

Understanding how iguanas live is important for anyone interested in these iguanas. With the right care, environment and diet, your iguana can live a long, healthy life. They can often surpass two decades. These necessary steps, which are discussed in the blog to care for them, make sure iguanas thrive and enjoy their long journey. Just embrace the responsibility and find yourself with a scaly friend for many years to come.

You can also check out PetsbyNumber for paint by number kits for awesome pet portraits.

FAQs

Are iguanas good pets?

Iguanas can be interesting pets for experienced reptile owners due to their size and care needs. But this requires a lot of space, lighting and a specific diet, which can be a challenge for beginners.

Can Iguanas swim?

Yes, iguanas are excellent swimmers. They often swim to escape predators or cool off.

Where do iguanas sleep?

Iguanas sleep in trees, high off the ground. They do this to avoid predators. They find secure branches to rest in at night. They are known to sleep deeply.

Why do iguanas shake their heads?

Iguanas shake their heads to communicate and show dominance. It is during mating or territorial disputes.

How fast can an iguana run?

Iguanas can run up to 21 miles per hour when they feel threatened.

Do iguanas lay eggs?

Yes, iguanas are oviparous. They lay eggs. Female iguanas typically lay clutches of 20 -70 eggs in burrows. It will hatch after about 90 days.

Do iguanas eat bugs?

Iguanas may occasionally eat insects or bugs. Iguanas are primarily herbivores. They may occasionally eat insects or bugs.

How to clean iguana poop?

Wear gloves and use a scoop or paper towel to pick up the iguana poop. Clean the area with a reptile-safe disinfectant. Rinse the spot thoroughly and dry it.

Do iguana eat meat?

Iguana are primarily herbivores. They eat fruits, vegetables and leafy greens. While some may occasionally consume insects or small animals, their diet should mainly consist of plant matter only.

February 04, 2025