Articles for tag: Marine Biology, Ocean Life, Sandcastle Fish, Underwater World, Weird Wildlife

A bunch of strange looking objects hanging from a ceiling

The Mystery of the Fish That Builds Sandcastles to Impress a Mate

Suhail Ahmed

On a quiet stretch of seafloor off southern Japan, a small pufferfish spends days carving a perfect circle into the sand – ridges, valleys, and a tidy nursery in the middle. Divers once called them ocean crop circles, beautiful and baffling, until cameras caught the artist in the act. The discovery didn’t just solve a ...

white and black fish in water

Cuttlefish Have W-Shaped Pupils – And Can Camouflage Without Seeing Color

Suhail Ahmed

In clear, shallow water, a cuttlefish can seem to dissolve into sand and shadow – then reappear like a plot twist. The paradox that drives researchers is simple and maddening: these animals match their surroundings with uncanny precision, yet their eyes are mostly insensitive to color. How does a creature that can’t see the rainbow ...