Originating in the waters under Mexico City, the axolotl or ajolote is a fascinating creature to study and research. They are primarily known for the ability to regenerate severed limbs, which is the primary reason scientists choose to study this species. The adults do not go through the metamorphosis and remain in an aquatic state, unlike other salamanders which change from aquatic to land by the time they are adult. The young larvae of the axolotl salamander are often confused with the tiger salamander and the waterdog, but are different from both.
As a result of shrinking habitat and introduction of non native species of fish, the axolotl is currently on the red list, which indicates the endangered status. The axolotl has been a source of food for the native human population for hundreds of years and the growth of Mexico City has increased the pressure on them to adapt and survive.
The full grown axolotl ranges from six to eighteen inches, with external gills and wide heads. The limbs are not developed as much as other species of salamander. The natural colors are brown or black with mutations occurring as albino golden or pink with black eyes. The females have wider bodies then the males do. Feeding for both genders is via suction and they primarily feed on worms, insects and small fish that are sucked into the stomach by the axolotl.
The axolotl are easier to breed in captivity then other types of salamanders. Some of the current research being done with iodine stimulants to overcome the problem of the axolotl being adult and not changing as other species do. The viability of the embryo is one of the ways that scientists study the axolotl because it is very easy to see defects that occur as the development happens. Regeneration of whole limbs and transplant of limbs are also important studies being done by researchers. The ability to grow limbs after the loss of the original is one feature that makes the axolotl popular as exotic pets.
Axolotl Salamander – Exotic Pets – Exotic Salamander
