I'll be breeding.
BREEDING
Controlled Pokemon breeding is a bit new, but still fasinating. The first recorded Pokemon breeding was documented shortly after the Johto league was established. The daycare couple decided to expand their business and take care of two Pokemon per trainer instead of just one. One day, the daycare lady (who shall remain anonymous) went out to feed two Pokemon owned by the same trainer in her care... to her surprise, there was an egg! The parents were a Togetic pair. This was exciting for a Pokemon's birth has never been witnessed. And to researchers' further surprise, the egg hatched into a never before seen Togepi, later discovered to be Togetic's infant form.
Since then, countless tests have been done concerning Pokemon reproduction. Here are the facts:
-the baby will be the same species as the mother, and the lowest evolution form (that is, if you breed a female Hypno with a male Machoke, the baby will be a Drowzee.
-if the father knows a TM/HM technique and the baby can learn it too, the baby will be born with it. There are also special "egg moves" inherited only by the father, like a baby Growlithe being born with its Houndoom father's Crunch technique. And if the parenst both know a move the bab will learn leveling up, the baby will be born with that too (like two Golbat with Wing Attack will produce a baby Zubat born with Wing Attack).
-Pokemon have breeding groups which determine compatibility. Umbreon's is Field only while Spinarak's is Bug only, so they are not compatible. But Cyndaquil is also in the Field group, so it can breed with Umbreon. The known groups are: Field, Amorpheus, Humanshape, Bug, Plant, Water (several of these), Flying, Dragon, Monster, and Can't Breed. Some Pokemon can be in two breeding groups, like Chikorita who is in both Plant and Monster. Field is also known as Ground, and Amorpheous can be Indeterminate.
-Pokemon who cannot breed at all are all legendaries (like Mewtwo, Raikou, and Latias), babies (like Cleffa, Pichu, and Azurill), Unown, Nidorina and Nidoqueen. There may be a few others I left out...
-Ditto is the universal breeder; it can reproduce with anything that can breed. Breeding is the only way to get male-only Pokemon like Tyrogue, and genderless Pokemon like Staryu, at a low level.
-If a Pokemon is a male-female pair (like the Nidoran), the chances of a male being hatched from the egg is very slim. But it can happen; I've hatched a Tauros from a Miltank before.
-A Pokemon egg obviously needs to be kept warm and safe. But it has been discovered that an egg in the company of a traveling trainer has a much faster growth rate. This may be because the developing embryo is influenced by the energy waves of the surrounding Pokemon's attacks, and that the Pokemon inside the egg gets excited and wants to be born sooner.
-The origin of the male-only Pokemon, the Hitmon, is still a mystery. They are the only male-only Pokemon who lack female counterparts.