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Male pufferfish carve seven-foot sand circles, and females reject sloppy geometry

Male pufferfish off the coast of Japan spend days sculpting radial sand formations that stretch roughly two meters across, ...

Scientists Were Puzzled for Years by Mysterious Seafloor ‘Crop Circles'

Divers discovered strange geometric formations on the ocean floor in 1995. It took until 2011 to find the tiny, poisonous ...