pufferfish

What’s a Pufferfish? Explaining Animal Behind Mystery Circles

Mystery circles on the seafloor have intrigued divers for decades, and scientists recently identified the culprit: a new species of pufferfish. This tiny architect—which builds elaborate nests to woo females—has also captured the hearts of our readers, with ...

What’s This Mysterious Circle on the Seafloor?

What creates mysterious circles on the seafloor? No, it’s not aliens of the deep—it’s actually pufferfish hoping to snag a mate, a new study says. Divers first noticed the 6.5-foot-wide (2-meter-wide) circular structures near Japan‘s Amami-Oshima ...

What’s This Mysterious Circle on the Seafloor?

What creates mysterious circles on the seafloor? No, it’s not aliens of the deep—it’s actually pufferfish hoping to snag a mate, a new study says. Divers first noticed the 6.5-foot-wide (2-meter-wide) circular structures near Japan‘s Amami-Oshima ...