Gorillas are mammals - they give birth to live babies.
These life forms and be hatched and born alive, mostly hatched though.
they are hatched
the fish are hatched :D
the panda is born alive
They are born alive
born alive
Calves are born alive
both \
Both are hatched from eggs. Neither are mammals
Mainly because of habitat loss and poaching, but some evidence indicates they may fall victim to human borne disease, as well.
Koalas are marsupials; therefore, they are born alive. Monotremes are the only mammals hatched from eggs, and the only monotremes are the echidna and the platypus.
Baby dolphins (called calves) are born alive.