They're an animal stripped down to its bare essentials. They're good at running and eating and making more deer, and that's about it.
I once watched a conga line of deer run in front of two hunting buddies and into a little ravine, and they each took two. Filled both tags in five seconds. This was in Montana, where locals can get up to five tags for hornless deer, male or female.
The others didn't speed up, slow down, dodge, or change direction. It was like some kind of fucking animal banzai charge.