Axolotls are used extensively in scientific research due to their ability to regenerate limbs, gills and parts of their eyes and brains. Notably, their ability to regenerate declines with age, but it does not disappear. Axolotls keep modestly growing throughout their life and some consider this trait to be a direct contributor to their regenerative abilities. The Axolotl CollectA figurine is hand painted and highly detailed. product dimensions: 9cm x 2.5cm. Ages 3yrs+.