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 ...

and the Indian pea puffer, Carinotetraodon travancoricus. Fish in this family are relatively slow moving, reliant on small fins to power them through the water. This makes them an obvious target for ...

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 ...