I was driving in Idaho a few weeks ago and saw an extraordinary event. You know those drivers who drive way too slow until you get to a passing lane, and then they take off like a bullet so you can't pass? It was one of those situations where 4 cars didn't quite make it past the lead car, so they were all bunched up together at the top of the hill when the lanes merged. I stayed a ways back, waiting for some type of collision
Unbeknownst to any of us, there was a good-sized buck in the woods next to the merging lanes, and he was running for his life. He leaped over the guard rail into traffic just as the last two cars arrived, and I hit the brakes. No sooner had the buck landed when he jumped again to avoid getting hit. Without any momentum and going slightly uphill, that buck cleared a newer model VW beetle going at least 60 MPH and landed on the other side unscathed. There was at least two feet of daylight between the buck and the roof of the car. If I hadn't seen it with my own eyes, I wouldn't believe it.
I was thinking of putting up a 10-foot fence around my future garden and orchard to keep the deer out. Now I'm thinking that might not be tall enough.