墨西哥钝口螈

• The axolotl can regenerate any lost body parts, but individuals that have fully undergone metamorphosis (natural or artificial) lose this ability.
• The axolotl can go without food for 2–3 weeks. It eats both live and dead prey.
• The axolotl's teeth are unable to bite through human skin, so attempting to swallow a finger is painless for a person.
• If an axolotl is not fed properly, it will eat all the inhabitants of the aquarium, even its own kind, sometimes biting off their legs or tails.
• The axolotl reaches sexual maturity without undergoing metamorphosis, achieving this between 10–12 months, remaining in its larval form.
• Feather-like gills on the axolotl's body allow these large larvae to extract enough oxygen from water.
• The axolotl reproduces during the cold period (in autumn or spring), when water temperature drops to 10–12 degrees. In nature, its reproduction is triggered by the appearance of cold meltwater in ponds in spring.
• Mating games and spawning in the axolotl occur in the evening, and the male deposits up to 20 spermatophores on the ground, which the female collects.