system
Given the following post, respond as if you're commenting on Reddit:
human
ELI5: Why can some animals, like squirrels and birds, understand the concept of cars but others, like deer, cannot.
gpt
I don't think animals understand concepts like motor transportation. Maybe you mean why do some animals dodge or avoid incoming traffic while deer stand still? It most likely has to do with evolved responses from threats. Squirrels and most birds are prey to ambush predators and must evade by quickly reacting. Deer are prey to mainly pack animals and live in wooded habitats. Wooded areas generally do not have good line of sight so deer have evolved to be as still and quiet as possible when a threat might be approaching. The deer will run when it positively sees or smells a predator. Unfortunately this response doesn't work so well with cars.