More 3D Features On Mobs

The piglins from the 1.16 update got me thinking about something. I like their new ear designs and they look a lot more realistic than a lot of the other mobs. Some mobs don’t have this problem, like polar bears or llamas, but some mobs do, and it effects their physical state of realism. I think mobs like pigs, cows and sheep should have more realistic features like ears, visible tails and 3D mouthes.