Not too long after I started mountain biking, I was riding the old section of TRTP back by Mr. Daugherty's property when I rounded a turn and surprised a smallish black colored snake slithering across the trail. I came up on it so fast, I only had time enough to steer just enough to only run over it near it's tail. I seem to have more encounters with chipmunks, squirrels, raccoons, possums, and rabbits than snakes.
Oh, once I found a turtle on the trail. I stopped to move it off the trail, and was prepared to move it to the side of the trail it was pointed. However, he was pointed down the trail, not going across it! He must have enjoyed the trail also.