A big brown stallion bites the throat of a buckskin. Teeth have shown to be the best weapon during battle, the pain of powerful bite is will-remembered and might be the deciding factor as to whether a stallion might challenge again.

I have noticed when a stallion is bitten hard, his mouth flies open and his eyes widen in pain, and the horse that has bitten will immediately recoil to avoid the inevitable retaliation.

They know from experience how to fight...and a successful stallion gets the females.