There are several large and small additions to world generation. Larger additions have their own page. Check out the sidebar for more information.
Improved Lakes & Rivers
Lakes and rivers are decorated with seagrass and cattails
Bushes grow in plains biomes.
Cobwebs are found under leaves and are destroyed when all supporting leaf blocks are removed.
Found where there are trees.
Tropical fish spawn in lakes and ponds in jungles.
Bats At Night
Bats will spawn outside at night.