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Iceberg linked to 69% fall in emperor penguin chick survival
Surviving emperor penguin chicks at Antarctica’s Coulman Island colony fell 69% in 2025 from the previous year, with researchers linking the decline to a grounded iceberg. Aerial photographs counted 6,658 surviving chicks…
The Story in Brief
Surviving emperor penguin chicks at Antarctica’s Coulman Island colony fell 69% in 2025 from the previous year, with researchers linking the decline to a grounded iceberg. Aerial photographs counted 6,658 surviving chicks in 2025, against 21,242 in 2024. The study was published in Communications Earth & Environment.
The iceberg grounded north of the island in July 2025 and stayed until early January 2026. It extended the shortest route to open water from about 9.3 km to 14.9 km. Researchers said adult penguins were forced to take a longer route after encountering a steep cliff on the iceberg, delaying food deliveries and possibly causing chicks to starve. The iceberg has since moved on, but the researchers warned that weakening ice shelves could make such events more common.
The Indian Opinion
The lazy narrative is that climate change directly killed thousands of chicks, but this study describes a specific chain of events involving one iceberg, a blocked route and delayed feeding. The opposite claim, that the incident has no wider meaning, is also too easy. The iceberg has moved, yet weaker ice shelves could increase such risks. Future breeding counts at Coulman Island will show whether 2025 was an isolated shock or part of a pattern.
Source: economictimes.indiatimes.com
This story was synthesised by AI from the source linked above.
