The unlikely artist – best known in Japan as a delicacy, albeit a potentially poisonous one – even takes small shells, cracks them, and lines the inner grooves of his sculpture as if decorating his piece.
Yoji Ookata, Japanese underwater photographer discovered these while diving off of Amami Oshima island. Male puffer fish dig the structure in the sand to attract females. The more elaborate the circle the better. Eggs are laid in the center and the ridges help protect the eggs from currents. ("leks" are behaviors in which males of a species gather together in competitive displays to attract females)
The Japanese team that captured this footage, of a comparatively tiny 3 meter giant squid (the largest ever caught was 18 meters!), did it by fitting their submersible with lights that were invisible to both squid and human eyes. Those wavelengths were captured by the camera, though … and the results are stunning. / via @Jen Lowe