I have been creating a jungle map recently, but a strange phenomenon has constantly drawn my attention away from building...
it appears that all animals spawned thus far (llamas, rabbits, ocelots) like to climb to the highest point around, and then stay there, regardless of where they were initially created.
I haven't seen this before 1.11, and although interesting, it's kind of annoying. Is this common, or is there an explanation in the game's code?
Could a plugin be causing this? How can I address the problem of constantly-climbing creatures?
Edit 1: The mobs have all been spawned manually, and natural spawning is disabled: they are making their way up. The hills themselves are in the same biome as the rest of the islands - "Jungle" with no variation - and even after knocking all mobs off the mountains (or killing them with a command) I see new ones climbing up occasionally, until they are repopulated.
Therefore I have concluded that this is an issue of AI or a plugin, not spawning procedures or biome.