How To Tell How Old A Bearded Dragon Is

Bearded dragons are fascinating and popular pets, known for their unique appearance and friendly personalities. If you are a new owner or considering getting a bearded dragon, you may be curious about its age. Determining the age of a bearded dragon can be challenging, as they do not have clear growth rings like trees or other telltale signs. However, there are several methods that can give you a good estimate of your pet's age. In this article, we will explore these methods and provide you with the information you need to tell how old a bearded dragon is.

Table of Contents

1. [Introduction](#introduction)
2. [Determining the Age of a Bearded Dragon](#determining-the-age-of-a-bearded-dragon)
- [Method 1: Size and Growth](#method-1-size-and-growth)
- [Method 2: Tail Length and Structure](#method-2-tail-length-and-structure)
- [Method 3: Spines and Coloration](#method-3-spines-and-coloration)
- [Method 4: Behavior and Activity Level](#method-4-behavior-and-activity-level)
3. [Conclusion](#conclusion)


Determining the age of a bearded dragon is not an exact science, but it can provide valuable insight into your pet's health and care needs. Knowing the age can help you understand their growth rate, potential lifespan, and specific requirements at different stages of life. While it may not be possible to determine the exact age of a bearded dragon, there are several indicators that can give you a rough estimate.

Determining the Age of a Bearded Dragon

Method 1: Size and Growth

One of the most common methods used to estimate the age of a bearded dragon is by assessing its size and growth. Bearded dragons grow rapidly during their first year of life, and their growth rate slows down as they age. By comparing the size of your bearded dragon to the average size of dragons at different ages, you can get an idea of its approximate age.

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For example, a bearded dragon that is 6 inches long is likely to be around 3 to 4 months old, while a dragon that measures 12 inches in length is probably closer to 9 to 12 months old. It's important to note that these estimates are based on average growth rates and individual dragons may deviate from these norms.

Method 2: Tail Length and Structure

Another method to estimate the age of a bearded dragon is by examining the length and structure of its tail. When bearded dragons are young, their tails are long and slender. As they mature, their tails become thicker and shorter.

By comparing your dragon's tail to its body length, you can make an educated guess about its age. A dragon with a tail that is longer than its body is likely to be under a year old, while a dragon with a shorter tail in proportion to its body is probably older.

Method 3: Spines and Coloration

The spines and coloration of a bearded dragon can also provide clues about its age. Younger dragons have softer, more flexible spines, while older dragons have stiffer and more pronounced spines. Additionally, the coloration of a bearded dragon can change as it ages.

Young bearded dragons often have brighter and more vibrant colors, while older dragons may develop a duller or faded appearance. By observing the spines and coloration of your dragon, you may be able to estimate its age within a certain range.

Method 4: Behavior and Activity Level

While not a foolproof method, observing the behavior and activity level of a bearded dragon can give you some indication of its age. Younger dragons tend to be more active and curious, constantly exploring their surroundings and engaging in playful behavior.

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As they age, bearded dragons tend to become more relaxed and may spend longer periods basking or resting. Of course, the behavior and activity level of a dragon can also be influenced by other factors such as health, environment, and temperament, so it is important to consider this method in conjunction with other indicators.


Determining the age of a bearded dragon may not be an exact science, but by considering factors such as size and growth, tail length and structure, spines and coloration, and behavior and activity level, you can make a reasonable estimate. Remember that these methods are not foolproof and individual variations can occur. Consulting with a reptile veterinarian or experienced breeder can also provide valuable insights into estimating the age of your bearded dragon.

Understanding the age of your bearded dragon can help you provide the appropriate care, diet, and environment for your pet. By using the methods discussed in this article, you can gain a better understanding of your bearded dragon's age and provide it with the best possible care throughout its life.


1. How can I determine the age of a bearded dragon?
To determine the age of a bearded dragon, you can look at its size, coloration, behavior, and the presence of certain physical characteristics.

2. Do bearded dragons change color as they age?
Yes, bearded dragons can change color as they age. Young dragons tend to have brighter hues, while older ones might develop darker, more subdued colors.

3. At what age do bearded dragons reach maturity?
Bearded dragons typically reach sexual maturity between 8 to 18 months of age, although the exact timing can vary between individuals.

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4. Can I estimate the age of a bearded dragon based on its size?
While it's possible to estimate the age of a bearded dragon based on its size, it is not always accurate. Factors such as diet and overall health can influence a dragon's growth rate.

5. Are there any external signs that indicate the age of a bearded dragon?
Yes, certain physical features can give you an idea of a bearded dragon's age. For example, young dragons often have smooth scales and clear nails, while older ones may develop rougher scales and darker, thicker nails.

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