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It turns out that these elusive seabirds had lived on the islands undetected for at least 2,800 years, according to new, unpublished research presented Dec. 11 at the American Geophysical Union meeting in Washington, D.C. It all started when a group of researchers spent 10 months doing what they thought was a pan-Antarctic survey of Adélie penguins by looking through every single cloud-free satellite image that they had of the southern continent. "We thought that we knew where all the [Adélie] penguin colonies were," said Heather Lynch, an ecologist at the Stony Brook University, during the news conference.That is, until...

A thriving "hotspot" of 1.5 million Adelie penguins, a species fast declining in parts of the world, has been discovered on remote islands off the Antarctic Peninsula, surprised scientists said Friday. The first bird census of the Danger Islands unearthed over 750,000 Adelie breeding pairs, more than the rest of the area combined, the team reported in the journal Scientific Reports. {snip} When the Landsat data originally suggested the presence of hundreds of thousands of penguins on the islands, she thought it "was a mistake". "We were surprised to find so many penguins on these islands, especially because some of...

All but two Adelie penguin chicks have starved to death in their east Antarctic colony, in a breeding season described as "catastrophic" by experts. It was caused by unusually high amounts of ice late in the season, meaning adults had to travel further for food. It is the second bad season in five years after no chicks survived in 2015.