A super-colony of Adélie penguins has been discovered, thanks to their poo. Big patches of it were seen in photos taken from space. The birds were found on the Danger Islands, part of the Antarctic Peninsula. In 2015, a team of researchers went to the islands to count the penguins. They used drones to take pictures. They found that more than 1.5 million penguins live in this area of the Antarctic. Researchers are surprised at the large numbers because penguins have been declining in other areas of the peninsula.