I've added in predator AI logic along with a wolf. Wolf will attack the player as well as deer. And they are good climbers too, so don't expect to climb up a slope to escape.
Animals have active ragdoll physics and can lose balance on steep slopes. Sometimes you can push them over too. Lots of fun sliding down slopes!
Vegetation reacts and bends realistically when animals walk through them. Beware if you see leaves bending and hear rustling sounds. Animals are really hard to spot in the thick jungle undergrowth.