Every winter thousands of giant Australian cuttlefish gather to breed in a stretch of shallow, rocky water off Point Lowly in South Australia. The phenomenon, known as an aggregation, is the only known instance of cuttlefish gathering in such large numbers – it is estimated there can be more than 150,000 in a 10km stretch of water – and has become a tourist as well as scientific attraction. This video, taken by mpaynecreative.tv, captures male cuttlefish as they display their brightest pigments in a bid to attract females. It is not known why the giant Cuttlefish aggregate in this area particularly but it is believed they are likely attracted to the shallow rocky area along the coast as it provides optimal habitat to lay their eggs. Video courtesy of mpaynecreative.tv