There are about 10 quintillion insects in the world. Yes, that's a real number. And it's a lot! They're very small and very different from us humans. We might not stop to think about it before we poison a cockroach, squish an ant with our shoe, or kill a mosquito, but is it ethical to kill an insect?

Brain Trust — Casuarina Street Primary School, Katherine: Riley, Mahlia, Milo, Clay, Angus, Ava