Original: With the introduction of PokÃ mon breeding, PokÃ mon are assigned to one or two breeding groups. When a male and female PokÃ mon that share at least one breeding group are left at a PokÃ mon Daycare, they may produce an egg, which will hatch into a young PokÃ mon..
Simplified: They are the second games in the PokÃ mon series, and increased the number of PokÃ mon to 251.