Here are two playful ways to say it:
- Wow — morpho butterflies are giant, shiny, and a little bit dangerous!
- Morpho butterflies are like flying blue mirrors — beautiful, but they carry tiny poisons that help keep them safe.
How I changed it (simple steps):
- Pick fun, exciting words (giant, shiny, flying blue mirrors) so it sounds magical.
- Keep the idea about poison but say it gently (a little bit dangerous / tiny poisons) so it isn’t too scary for a 7‑year‑old.