What make some other animal abandon their baby's?

Question

What make some other animal abandon their baby's?

Answer 1

my cat rejected one of her baby because he was born sick and,  he needed the mom to recuperate   .... but unfortunately the mommy rejected him and the vet did what they can , he die .(

Answer 2

Survival of the species

Baby is weak or has something wrong with it.

Answer 3

They abandon the child because it is the weakest of the pack and thus would be least suited to survive and carry on to reproduce. Its also a liability, cuz it would take xtra care to bring the runt back to a stable health condition. It makes more sense to an animal to get the healthy ones healthier rather than get the sick ones healthy.