A woman asked me that on the lift at Big Sky yesterday! WTF!
Her: "at what elevation do deer turn into elk?"
Me: "actually deer and elk are different animals, we have deer here too."
Her: "hmmm.... no deer turn to elk at a certain elevation to adapt."
Me: "Really? Wow I didnt know that."
The remainder of the lift ride was silent. I was totally baked when this transpired and I have no idea how I didnt break out into laughter infront of her. It definately made my day though!!