I found a dead lion once had been stomped literally flat as a pancake by broomtails. No way of knowing if they killed, or just found the dead body and stomped it out of spite. But, dang... It really was something to see, mountain lion spread thin and flat and covered in horse hoof prints.
Also, the most violent thing I have ever witnessed in "nature" was two stallions fighting. Both of them just totally covered in foam and blood. Kicking and biting the shit out of each other. When one finally tried to give up and run away, the winner chased him clear out of sight and I wondered then and now, if the winner didn't catch up and finish the job.
- DAA