I wanted a survival world with diverse resources nearby, so I created a custom world with biome size 2. (1 just seems too small.) However, despite trying about a dozen seeds and flying around in custom mode, they seem to be strongly predisposed to taiga, plains, and mountains, with other biomes more rarely, and not a jungle to be found.
My daughter says that it's because the jungle trees are too big for the smaller biome, and that either they are impossible or just very, very rare. Is she right, or have the seeds just been unlucky?
If so, what is the minimum for jungles to occur?