How do different organisms look after their young ones?

There are a thousand different ways in which the young of any species are cared for and raised. But the general rule is: they either protect them after birth or they don't. If they don't, they may in several cases protect the unborn or unhatched by burying or otherwise protect the eggs or provide nourishment in some form until they are born/hatched. Usually species that don't protect their young make up for it by producing a great number of them in one go.