Following is a transcript of the video. Narrator: If there's one thing you know about puffer fish, it's that they can do this. When aggravated by a predator, they, you know, puff up. Some puffers, ...

Pufferfish, known for their unique ability to inflate and their potent neurotoxin, tetrodotoxin (TTX), are both fascinating and deadly. These creatures, with nearly 200 species, use their inflation ...