Contrary to what it looks like, puffer fish are not like balloons. Because what's normally inside them isn't air. It's water. Elizabeth Brainerd: What they do is they actually take water into ...

Pufferfish have an iconic defence mechanism, but there’s more to these famous inflatables than meets the eye. Their potent poison has a fearsome reputation, linking daredevil diners, drug-user ...

To give your balloon the appearance of a puffer fish, cut the tip of the balloon into a fish tail shape. This step adds a fun ...

If a puffer fish is caught by a predator, taking them down won't be a fun experience. These scrappy sea balloons have either sharp beaks, teeth or both that they can use against their enemies.