When aggravated by a predator, they, you know, puff up. Some puffers ... Contrary to what it looks like, puffer fish are not like balloons. Because what's normally inside them isn't air.

After rinsing off the soap, carefully squeeze the excess water out, making sure to not clump the material ... on mentalfloss.com as How to Re-Puff Your Puffer Coat.

Be careful not to let the vinegar and baking soda ... inflating the balloon and giving your puffer fish its puffed-up ...