The population diffusing periods are before and after the peak of the hatchingperiod.
孵化高峰期前后为种群的扩散时期。
2
The diapause of pine caterpillar is relevant to the larval hatchingperiod, food, climate and other ecological conditions.
滞育与幼虫孵化期、气候、生态条件和食料有关。
3
Rogers found that a chick's lateralisation depends on whether it is exposed to light before hatching from its egg—if it is kept in the dark during this period, neither hemisphere becomes dominant.