You know it! 🖍️ Crayons deployed.
Tiny mouse = big surface, tiny guts → heat blasts out, eat like a maniac.
Big elephant = small surface, huge cozy core → stays warm easy.
Scale x2 and the outside (area) squares to x4 while inside (volume) cubes to x8. Physics runs on squares!
Doodle delivered. Want tweaks or another one?