Penguin Glossary: Fast Ice, Krill, Moult, and More
Penguin news and research often use small-looking terms that decide whether penguins can breed, feed, moult, and be protected.
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Satellite Finds Emperor Penguin Moulting Risk as 2025 Images Show 25 Groups
A British Antarctic Survey (BAS) study used satellite imagery to locate emperor penguin moulting sites and found only 25 small groups in 2025 imagery as shrinking sea ice increased risk.
2/20
Antarctic Gentoo Penguins Breed Earlier as Oxford Study Tracks Warming
A decade of data from the University of Oxford and Oxford Brookes University shows Antarctic gentoo penguins breeding 13 days earlier per decade on average, with some colonies shifting by 24 days.
1/20
Emperor Penguin Study Finds 22% Decline from 2009 to 2023
A 2025 Communications Earth & Environment study by Fretwell et al. found emperor penguin populations fell 22% from 2009 to 2023, faster than high-emissions model projections.
2025/6/15
Adelie Penguin Guano Study Finds Ammonia May Help Antarctic Clouds Form
A 2025 study found Adelie penguin guano can release ammonia up to 1000 times background levels, potentially helping aerosols and low clouds form.
2025/5/20