There’s a road in my area (rural MN) where I don’t slow down if there are deer on the side of the road. It’s a curvy road with a ton of deer, and back when I was a teenager the deer would do the normal deer thing of potentially getting spooked and run across the road…or directly in to your stopped car.

15 years later they no longer do that, just on that road in particular. I don’t know if it’s evolved behavior or learned, but they absolutely changed.