Built like an armoured tank two million years ago and just never got the memo to update.
Fun fact: "White rhino" is a mistranslation of the Afrikaans word "wyd" (wide), referring to its broad mouth.
Someone looked at a perfectly good burger and thought yeah but what if we melted cheese on it.
Fun fact: The U.S. trademark for the word "cheeseburger" was granted to a Denver restaurant in 1935.