More Mob Interactions/Behaviors With Each Other and the Player

I think more mob interactions/behaviors would help make the world feel more alive. Here are some examples:

-Warm variants of cows would ram the player if they wear any type of leather armor that's dyed red

-Chickens would build nests in the wild

-Sniffers would shake randomly, sometimes dropping loot from their bushes (nothing too OP but stuff like iron ingots or flowers)

-Polar bears would actively hunt other animals like cows, sheep, goats, or chickens

-Rabbits would dig burrows (burrows could be found underneath trees

-Foxes would dig into the ground to find rabbit burrows