What environmental conditions favor the survival of flea eggs?

Flea eggs thrive in warm, humid environments because these conditions provide the optimal moisture and temperature balance that supports their development and hatching process. Flea eggs require a certain level of humidity to prevent them from desiccating and dying before they hatch. Generally, environments with temperatures around 70-85°F (21-29°C) and at least 50% relative humidity are ideal for flea reproduction.

In contrast, cold and dry environments can hinder the flea life cycle, as the lower temperatures may slow down metabolic processes, and the lack of moisture can cause the eggs to dry out, making survival less likely. Similarly, dry and dark locations do not benefit flea eggs because the absence of sufficient humidity is detrimental to their development. Lastly, bright and arid areas are unsuitable since the warmth must be coupled with humidity; excessive dryness poses a significant threat to egg survival. Thus, the warm, humid conditions support the necessary environment for flea eggs to survive and progress to the next life stages effectively.