Does the seed of a world also regulate the animals that spawn in each chunk? In other words, if you genenrated a world and then made an identical one using the same seed, would the animal spawning also be indentical? (including sheep colours?)
It is based on seeds, yes. Everything from what kind of animals spawn to what color sheep are. I remember getting a world back in 1.0 where 6 pink sheep spawned right next to me. I couldn't believe it so I recreated the map with the same seed and they were there again. I don't remember the seed now, but it wouldn't work in 1.2.5 anyway.
in Blue a group of pigs are always near spawn
in blue a heard of white sheep are always there
but they are never at the exact same postion but the same area so kinda
oh and sorry for the similar seed names
Just tested out both of those and got the same thing.
Still not sure about the sheep colours though. I did get white sheep, but it may just have been a coincidence.