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Zavodovski Island loses title as largest penguin colony
The British Antarctic Survey reported that Zavodovski Island has lost more than 500,000 chinstrap penguins since 2011, ending its status as the world's largest penguin colony. Warming waters are reducing the penguins' access to Antarctic krill.
Why it matters
The collapse illustrates how ocean warming is disrupting the krill-based food web of the Southern Ocean.
Background
Chinstrap penguins feed largely on Antarctic krill, small crustaceans at the base of the Southern Ocean food chain. Zavodovski is a volcanic island in the remote South Sandwich chain.
The story so far
- Zavodovski Island loses title as largest penguin colony
- Zavodovski Island loses title of world's largest penguin colony
Sources
- France 24 ↗October 7, 2026
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