In order to attract mates, a newly discovered species of pufferfish makes geometric patterns that involve radially aligned ridges and valleys decorated with fragments of shells In 1995, divers noticed ...

So what if fish need water to live. For certain pufferfish, flirting on the sand of a moonlit beach is irresistible (in bursts). And that’s not the only odd thing the ocean’s famous self-inflators do.

Pufferfish can balloon into a spikey sphere within moments of sensing a nearby threat, and while it may seem like these creatures hold their breath as they inflate, they can actually breathe as they ...