A bison by any other name

As a parent you treasure the precious moments that make all the fatigue and sacrifice so worthwhile. And then there are the other moments...

Red Head: Mom, is it true that Bison is the actual name for Buffalo, because I thought they were both real names?
Me: Are they the same animal?
Red Head: Yes... they are. So, which is the real name?
Me: I thought they were different animals, huh.
Red Head: Well, clearly I know more than you at this point, so nevermind.

I should have reminded her who bought her all the books on science...