Joseph Leverton on Instagram: "The long-spine porcupinefish (Diodon holocanthus) is a fascinating marine creature. Here are five interesting facts about it: 1. Inflatable Defense Mechanism – When threatened, the long-spine porcupinefish inflates its body by swallowing water, making it appear much larger and exposing its long, sharp spines. This helps deter predators. 2. Toxic Skin and Organs – It contains tetrodotoxin, a powerful neurotoxin found in its internal organs and skin. This toxin makes