Research overview: infanticide, communal cubs, and the crche in lion prides

When a new coalition of males takes over a pride they commonly kill unweaned cubs, which brings females back into breeding condition sooner. This research overview surveys how lionesses respond by giving birth in close synchrony, pooling cubs into a communal crche, and nursing one another's offspring, behaviors that dilute the risk to any individual cub and present a united front against infanticidal males. The synthesis covers how synchronized estrus, group defense, and shared lactation interact to buffer the destabilizing effect of frequent male turnover. It also considers how the length of male tenure shapes cub survival across years and why prides experience pulses of recruitment timed to coalition stability. For pride watchers it explains the striking sight of similarly aged cubs moving together under several mothers.