Axolotls are unique amphibians known for their ability to regenerate lost body parts. They are a type of salamander that remain in their larval form throughout their lives, a phenomenon called neoteny. Native to the lakes of Mexico City, axolotls have external gills and a wide, flat head, making them easily recognizable. These creatures are primarily found in the wild in the Xochimilco lake complex, but their population has declined due to habitat loss and pollution. Axolotls are popular in scientific research and as pets due to their fascinating regenerative abilities and distinctive appearance.