Axolotl

Axolotl facts at a glance

How big is a axolotl?

An adult axolotl measures 28 cm long — about 16% of the height of an average adult person (1.73 m) — and weighs around 250 g, a small fraction of an average adult’s body weight (70 kg).

What is a group of axolotls called?

Explore more animal collective nouns and baby animal names .

Neoteny: the salamander that stays young

Most salamanders transform from water-living larvae into land-living adults, but the axolotl keeps its juvenile form for life, a phenomenon called neoteny. It retains its feathery external gills and stays fully aquatic, breeding while still in what looks like a larval body.

Regeneration

The axolotl is one of the most studied animals in regenerative biology. It can regrow lost limbs, tail, parts of the heart and other organs, and even sections of its brain and spinal cord, often with little or no scarring. Scientists study it to understand how regeneration works and whether similar processes might help in human medicine.

Habitat and range

In the wild, axolotls live only in the remnants of the lake and canal system around Mexico City, especially Lake Xochimilco. This habitat has been drained, polluted, and invaded by non-native fish, leaving very few wild axolotls.

Conservation

The axolotl is Critically Endangered in the wild, with wild numbers reduced to a tiny fraction of their former range. Paradoxically, it is abundant in captivity as a pet and a lab animal. Restoring the canals of Xochimilco and reducing pollution are central to saving the wild population.

Did you know? Axolotl facts

• The axolotl is a salamander from Mexico that keeps its larval features for life, including feathery external gills, and lives permanently in water instead of moving onto land.
• No. The axolotl is an amphibian, specifically a salamander. It looks fish-like because it keeps its larval form and external gills for life and lives permanently in water.
• Yes. Axolotls can regenerate lost limbs, tail, parts of organs, and even portions of the brain and spinal cord, often without scarring. This makes them important in scientific research.
• Axolotls undergo neoteny, meaning they keep juvenile features such as external gills and remain aquatic for life rather than transforming into a land-dwelling adult.
• Yes. Axolotls are Critically Endangered in the wild, surviving in just a few canals near Mexico City, even though they are common as pets and lab animals.
• Conservation: Critically Endangered (IUCN).

Diet & feeding

Axolotl feeds primarily as a carnivore (worms, insects, small fish). Most salamanders transform from water-living larvae into land-living adults, but the axolotl keeps its juvenile form for life, a phenomenon called neoteny. It retains its feathery external gills and stays fully aquatic, breeding while still in what lo

Adaptations

• Most salamanders transform from water-living larvae into land-living adults, but the axolotl keeps its juvenile form for life, a phenomenon called neoteny. It retains its feathery external gills and stays fully aquatic, breeding while still in what looks like a larval body.
• The axolotl is one of the most studied animals in regenerative biology. It can regrow lost limbs, tail, parts of the heart and other organs, and even sections of its brain and spinal cord, often with little or no scarring. Scientists study it to understand how regeneration works and whether similar processes might help in human medicine.

Behaviour & ecology

• Most salamanders transform from water-living larvae into land-living adults, but the axolotl keeps its juvenile form for life, a phenomenon called neoteny. It retains its feathery external gills and stays fully aquatic, breeding while still in what looks like a larval body.
• The axolotl is one of the most studied animals in regenerative biology. It can regrow lost limbs, tail, parts of the heart and other organs, and even sections of its brain and spinal cord, often with little or no scarring. Scientists study it to understand how regeneration works and whether similar processes might help in human medicine.
• In the wild, axolotls live only in the remnants of the lake and canal system around Mexico City, especially Lake Xochimilco. This habitat has been drained, polluted, and invaded by non-native fish, leaving very few wild axolotls.

Communication

• Axolotl uses scent, posture, and vocal signals to mark territory and coordinate social behaviour.
• Communication intensity often peaks during breeding seasons and territorial disputes.

Habitat & range

Freshwater lakes and canals of Mexico City

Ecological role

Axolotl acts as a predator that helps regulate prey populations and maintain balance in freshwater lakes and canals of mexico city.

Conservation status of the Axolotl

Sources & references

This guide is compiled and reviewed against established zoological and conservation references. Key sources for the Axolotl:

• IUCN Red List of Threatened Species

  Conservation status (Critically Endangered) reflects the IUCN Red List category for Ambystoma mexicanum.

• iNaturalist — observations & photos

  Search citizen-science observations and community IDs for Ambystoma mexicanum. Useful for range checks and recent sightings — not a substitute for formal Red List status.

• GBIF — occurrence data

  Global Biodiversity Information Facility species search for Ambystoma mexicanum. Explore published occurrence records used in range research.

• IUCN Red List — Ambystoma mexicanum.

  Conservation status (Critically Endangered) and population trends.

• Animal Diversity Web — Ambystoma mexicanum. University of Michigan Museum of Zoology.

  Life history, morphology, and range.

• Wikipedia — Axolotl.

  General taxonomy and overview (cross-check primary sources).

• Global Animal Guide editorial standards

  How we research, source, review, and update every guide for accuracy.