How do you puff a puffer fish?

A pufferfish, also known as a blowfish, inflates its body by rapidly swallowing water or air. The water or air is stored in the fish's elastic stomach, causing it to expand and become round. The spines on the fish's body also stand out when it inflates, making it look even larger and more intimidating. This inflation is a defense mechanism used by pufferfish to deter predators. When threatened, a pufferfish will puff itself up to make itself appear larger and more dangerous, and to make it more difficult for a predator to swallow. Some species of pufferfish can also release toxins when they are inflated, which can further deter predators.