there are evil mobs zombie,skeleton,spider,creeper,zombie villager, baby zombie villager,witch,poison spider,enderman,jockey silverfish,slime  and in nether there are zombie pigmen, ghasts, baby zombie pigmen, ,wither magmacube blaze  in end last one ender dragon  





natural mobs are 
villagers
cows
pigs
sheeps
chicken
baby villagers
bat
wolfs
snowman
iron golem
nemo
puffer fish
salamon
ocelot
cat
mushroomcow
but agreesive last one is wolf angry