are mexican salamanders must be survived without water completely during their entire lifetime

Mexican salamanders, such as the axolotl, cannot survive without water entirely during their entire lifetime. Here are some reasons why:

1. Larval Stage: Salamanders begin life as aquatic larvae that depend on water for survival.
2. Respiration: Their skin, which helps them breathe and excrete waste, requires a moist environment.
3. Hydration: They need water or a damp environment to maintain proper hydration.
4. Reproduction: Salamanders typically return to water to breed and lay eggs, which develop in a watery environment.
5. Habitat Preferences: Many salamander species prefer damp habitats like marshes or ponds.

While some salamanders can tolerate drier conditions than others, a complete absence of water would be detrimental to their long-term survival. Maintaining a suitable environment with access to moisture is essential for their well-being.