Where do salamanders predominantly lay their eggs?

Salamanders predominantly lay their eggs in water or under moist rocks because these environments provide the necessary moisture and protection for the developing eggs. Most salamander species have a direct requirement for aquatic habitats for their eggs, as the eggs are often gelatinous and can dry out if not kept moist. Laying eggs in water allows the larvae to hatch into aquatic environments where they can develop safely before transitioning to land. This moist habitat is crucial for maintaining the right conditions for egg development, ultimately supporting the salamanders' life cycle and survival.

The other environments listed are less suitable for egg-laying. Tree holes may offer some moisture, but they do not provide the consistent wet conditions needed for all salamander species. Sandy beaches and dry soil are typically too dry to support the hatching and early development stages of salamander larvae. Therefore, water and damp places are the most appropriate and natural choices for salamander reproduction.