Having adapted to better colonise the beaches of Darwin it frequently lands on, the South Polar Photosagnia began to cluster in large gelatinous mats and became the Darwinian Photosagnia, allowing them to weather the sun's rays. They often create meter-long lines at the tide zone, creating a number of colonies on the beach that are alternately both submerged and exposed to the sun at different times of the day. The powerful rays have allowed them to multiply quickly, though they have also had to evolve a thicker membrane around their nucleus and a thicker cell wall to help protect them from the damage caused by the intense sunlight.
As they rely on the sea, they do not survive more than a few centimeters further than the high tide line. The tide often brings in the remains of dead organisms, allowing them further nourishment.