Spot‑fin Porcupinefish

Diodon nicthemerus—the spot‑fin porcupinefish (also called slender‑spined porcupinefish)—belongs to thefamily Diodontidae. Like other porcupinefishes it can inflate by gulping water/air when threatened, erecting itsslender, normally recumbent spines for defence. It crushes hard‑shelled invert...