Satellite images reveal new clues about Adélie penguins in Antarctica

Earlier this year, around 1.5 million Adélie penguins were discovered among a stretch of small Antarctic islands known as the Danger Islands. A new investigation into this supercolony has revealed that the penguins have lived in this region completely undetected for at least 2,800 years. The penguins were found using satellite images after a NASA scientist developed an algorithm which automated their detection by recognizing penguin poop, or guano. Heather Lynch, who is an ecologist at the Stony Brook University, said that the experts thought …