Baby Mobs

Baby animals are smaller variants of animals, introduced in version 0.6.0. Baby animals have a chance to randomly spawn, but as of 0.8.0, if you tame two animals of the same species, e.g. two adult pigs with carrots, hearts fly out of their heads and a baby pig spawns. A baby animal will grow into an adult animal in about 15-30 minutes. You will be able to tell if it is a baby if it has a large head and small body. Babies are usually found near adults. Baby animals might also have a chance of respawning.

Trivia

 * Baby animals do not drop anything when killed, even in the PC version.
 * Spawning baby animals with breeding was added on 8.0.