Pufferfish Create Mysterious Circles On The Ocean Floor
In Japan, researchers discovered mystery circles on the floor of the ocean. These circles are related to Pufferfish, and it’s a part of their mating ritual. These circles measured 7 feet in diameter, even though the fish that made them was smaller. Those who made the circles had one thing on their mind, and that was mating. To attract a female, the males swim along the seafloor and flap their fins to sculpt detailed designs, ridges, and valleys. This process takes about nine days. Once they make the design, they decorate them with shell fragments. The females then lay their eggs in the center of the design. Scientists believe these nests are so large because of poor visibility and the need to attract females that might not be nearby (Scientific American).