Japanese puffer fish take grand romantic gestures to the ocean floor

Japanese puffer fish takes grand romantic gestures to the ocean floor (or: another reason to love BBC Earth) : Equipped with nothing more than his two fins, the tiny Japanese puffer fish works almost continuously for an entire week to create a geometrically perfect design in the sand of the ocean floor. Complete with a few shells for that extra special touch, the artwork is his species’ version of a grand romantic gesture meant to land him a female companion (watch, runtime 2:59).