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Introduction: One of the most common and well-known of all Antarctic penguin species, Adelie penguins can be found forming colonies on islands, beaches and headlands all around the Antarctic coast. The sight of thousands of them waddling and sliding to the water’s edge and then, at the appropriate moment, diving headlong into the frigid Antarctic waters, has thrilled Antarctic visitors for generations. Early explorers made use of the ubiquitous Adelie not only for endless entertainment but also as a source of eggs and tough, but tasty meat. Scientists today use the Adelie as an indicator species to monitor the abundance of krill, so important to the web of Antarctic life.