Morris: “I hear ambulance! Maybe somebody hurt!”
Milo, showing his clenched fist: “Maybe someone has a hole in them THIS big.”
Me: “How would they get a hole that big in them?”
Milo: “Maybe there was a monster with huge claws and it just went ‘HAAAA!” (stabs imaginary victim) “… and the person went ‘Aaaaagh, I need an ambulance.'”
Me: “Well, that does seem like the likeliest option.”
Me, attempting to explain evolution in simple terms: “Over long periods of time, plants and animals change in relation to the changing world around them.”
Milo: “You mean I’m going to turn into a dinosaur? Cool!”
Me: “No, dinosaurs died out millions of years ago. But the tiny mice-like creatures that lived back then eventually evolved to become us.”
Milo: “You mean I used to be a mouse? Cool!”
Me: “Well, actually, those tiny mice became all sorts of different creatures, one of which was a creature like a monkey, and that monkey eventually evolved to become us.”
Milo: “You mean I’m half-mouse, half-monkey? THAT’S SO AWESOME!”