Chinstrap Penguins (IMAGE) Louisiana State University Caption Chinstrap penguin populations are in decline in the Antarctic Peninsula. While in the past, Chinstrap penguins' strategy of foraging on large, predictable patches of Antarctic krill offshore made sense, now as krill have declined, this specialist strategy may not be best suited for today's rapidly warming environment. Credit Michael Polito, LSU Usage Restrictions None License Licensed content Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.