pandas often give birth to twins
but that's a problem pandas can only look after one baby at once this means that one of the babies is totally abandoned
when pandas are in captivity the babies are swapped out that way the babies can be looked after half by the panda and half by humans
when a seal gives birth it's very protective of its kid for twelve days and then the baby's seal is abandoned
that's right seals only take care of their kids for twelve days after that time they give their kids no food and no protection
that's probably why 30% of seals pass away in their first year of life
cuckoos are famous for abandoning their kids before born
cuckoos drops their own eggs into other bird's nests
this means that other birds sometimes have to raise baby cuckoos
sometimes this goes badly as the baby cuckoo does not survive.