More Mobs
As the name implies, this texture pack adds new mobs without replacing Minecraft vanilla.You can find them in a specific biome, rename or summon them with a command.Here you can get the commands, by the name you can know the biome in which it is located.

Default
Rename to steve
Rename to zombie
Rename to wheat

Summon polarbear default
Summon polarbear polar

Default
Summon chicken cluckshroom (spawn in mushroom biomes)

Default
Summon enderman warped
Summon enderman jungle

Default
Summon ghast basalt
Summon ghast crimson
Summon ghast soul
Summon ghast warped

Default
Rename to golden
Rename to copper

Default
Summon rabbit frog (spawn in swamp)

Default
Summon skeleton desert
Summon skeleton flower
Summon skeleton jungle
Summon skeleton mesa
Summon skeleton ocean
Summon skeleton savanna
Summon skeleton frost
Summon skeleton soul
Summon skeleton swamp

Default
Rename to corrupted
Summon slime ocean
Summon slime deep_ocean
Summon slime honey (spawn in flower forest)
Summon slime mushroom (spawn in mushroom biomes)

Default
Summon strider crimson
Summon strider soul
Summon strider warped

Default
Rename to bones

Default
Summon zombie jungle
Summon zombie ocean
Summon zombie frost
Summon zombie swamp