WildBlue_Planet on Instagram: "Pufferfish have one of the ocean’s most dramatic defense moves — they inflate by gulping water (or air), expanding their elastic stomachs to several times their size. 🫧 Their flexible skeleton — with no ribs or pelvic bones — allows this transformation, while sharp spines pop out to warn predators: “Don’t even try.” Dm for credit or removal 👏🏻🙏🏻 For educational purposes only. #pufferfish #oceanfacts #marinebiology #fish #science #wildlife #nature #didyouknow #