Changes

Just like not-so-rare pokemons, rares one tend to spawn in some biomes more than others. This has been widely analyzed by bezoarboy (link below). For example a [[Dragonite ]] will be rare for anybody (don't expect someone living in a place where Dragonite spawn like Pidgey, this thankfully doesn't exist), but if a Dragonite spawns, there is 66% chance that this happens in a mountain biome. I personally found several of them, always while travelling traveling into mountain biomes. This study suggest also that [[Dodrio ]] is likely to spawn 99% of the time in a [[Bug Biome]].