

Unlike other species which cannot breed, baby Pokémon evolve into species which can do so. Some Pokémon, known as baby Pokémon, are also found by hatching them from an Egg created by their evolved forms, either naturally or through use of a held incense. According to Professor Elm, as quoted by a man in Hearthome City, and a Monsieur in Coumarine City, Eggs are not actually eggs and are more like "cradles". According to a girl in Solaceon Town, where one of many Pokémon Day Cares are located, no one has ever seen a Pokémon lay an Egg, and thus, it is not confirmed that this is how they appear. Pokémon Eggs are produced by breeding two Pokémon of a compatible Egg Group and opposite gender together and will contain, by default, the lowest species in the evolutionary line of the mother.

5.3 Pokémon Gold & Silver: The Golden Boys.5.2 Pokémon Diamond and Pearl Adventure!.4.2 Pokémon hatched from Eggs that were not seen.Pokémon Brilliant Diamond and Shining Pearl.
