The pufferfish caught in a net in this fascinating YouTube clip gives a perfect demonstration of how they ‘puff’ their bodies up. One moment it looks like a regular fish, and the next it resembles a ...

This dating term grew from what a real puffer fish does when sensing danger. The puffer fish is normally quite docile and playful—a bit SpongeBob SquarePantsy. However, when there's a possible threat ...