This is not necessarily suboptimal behavior; given that any genetically determined behavior will constitute a categorical imperative among those individuals car

This is not necessarily suboptimal behavior; given that any genetically determined behavior will constitute a categorical imperative among those individuals carrying the genes, and whose offspring gets orphaned is to some extent random, the benefit of having their own offspring cared for in the event of their untimely death may outweigh the cost of raising offspring with whom they have less genetic material in common.