Link hostile mobs with biomes

It would be better to increase the links between mobs and biomes, in particular hostile mobs.

This not means to make all hostile mobs the same as slimes that spawn only in a single biome, but make they spawn in large quantity in 2 - 5 biomes, and much less in other biomes.

For example creepers might spawn in large quantity in caves and mountains (gun-powder related biomes), skeletons might spawn in very large quantity in deserts and badlands (death areas), witches and spiders in dark oak forests (this will make them very scary cursed forests), and the same with zombies and other.

And it would be very nice, in general, to make hostile mobs much frequent in forests, and almost "zero-frequent" in plains. This will make forests much more interesting and challenging (and scary), as in real world they are.

Maybe in a Biome Update?