"Uh, they eat leftover dead things. Like when there's a dead squirrel in the street, a vulture will come eat it up."
"But this squirrel is eating an acorn. Is he not dead?"
"No, he's alive. He's fine. The vulture doesn't want him."
Then she pointed at each animal on the page and asked if it were dead or not. Yeesh. Next time, I'll just tell her they all eat peanut butter sandwiches.