So I was thinking that the implementation of animal carcasses (dead bodies) would be a good thing. These would allow for players to have access to hides and things that are impossible to obtain solo (Bear hide, etc.)
My idea is based off the fact that in the real world, animals fight each other over things such as territory, food, etc. Alphas especially are very aggressive towards other animals and often kill the weaker animal/intruder.
I was thinking that if this could be implemented, it could be done like Godsends, and be a rare find. Also the loot could be based off a percentage. For example, only having a small percentage chance to get a hide, meat, bones, animal heads, wool, skulls, etc.
To go along with this, time could also be a factor and the longer the carcass/body has been in the world, the less chance there would be any salvageable items like hides and meat due to rot. This could also open up another dynamic for "Roving" mobs. Basically some or all mobs could/would no longer be static and would move around. Possibly/occasionally the player could walk up on a fight between animals and wait to claim the spoils at a high percentage chance of getting items since it would be a fresh kill?
Not sure if this could be implemented, just an idea. Keep up the good work!