Not So Simple Mobs by TenPlus1
Adds a host of creatures into your world with new weapons too.
A collection by Franziber
My favorites
Adds a host of creatures into your world with new weapons too.
Adds Not Only Prehistoric Fauna and Flora to Hades Revisited.
Adds Prehistoric Fauna and Flora to Minetest Game
Lets you eat Horsetails from Paleotest. Very helpful in caves!!!