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How do I know if my Emerald Swift is a juvenile or an adult?

Updated On September 23rd, 2025

Pet's info: Reptile | Lizard | Male | | 4 lbs

How can tell if my Emerald Swift is a juvenile or a adult.

1 Answer

Most Helpful Answer

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Answered By Angel Alvarado, LVT

Licensed Veterinary Technician

Published on January 12th, 2018

If you don't know the birth date, size is the best (but not most accurate) method to determine age. Adult emeralds are about 6-8 inches long when fully grown. This length can be reached anywhere between 6 and 12 months. It depends greatly on environment and diet/nutrition and can vary bewtween lizards.

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