So I'm driving down a country road and see a great buck -- I mean a real Boone and Crocket candidate. I slowed to a crawl and watched him. Then he started to run, making a wide arc across the field and then leaping into the road and sliding/stumbling to the other side, just a few feet in front of my truck.
By way of comparison, I encountered numerous squirrels during the day. They may make a quick zig-zag as you approach, but they always make a dash to the edge of the road.
The point is that it appears squirrels understand the concept of the road and vehicles and their line of travel while deer just never seem to get it. They repeatedly run out in front of cars when it would be easy to just wait until they pass by.
Now I would think that a deer is smarter than a squirrel but their road-relevant behavior would make you wonder. Anyone care to offer a theory or explanation for this?