I hit a cow once. There were snowbanks and the critter had gone over the fence. I was only going around 20 mph. The car spun and the front smashed in. The cow fell down, got up and walked back into the field. I called the rancher and told him. He could never identify which cow had been hit, but my car was a mess.
Thirty couple years ago I hit a pig in the fog down by Ocala. Killed the pig. Just bent the front rim on my Honda CB500 a little and added some scratches to the paint job and to me. The highway patrol sent a van out to get it that looked like it was rigged inside to butcher a hog.