Antarctic’s Halley Bay colony of emperor penguins has seen a “catastrophic breeding failure” over the past three years linked to melting sea ice.MoreThis 2010 photo provided by the British Antarctic Survey shows emperor penguin chicks at Antarctica’s Halley Bay.More

What was once the world’s second largest colony of emperor penguins has not been able to raise chicks for the past three years in what researchers are calling a “catastrophic breeding failure.”

Antarctic’s Halley Bay colony in the Weddell Sea usually sees an estimated 14,300 to 23,000 breeding pairs each year, which represents up to 8.5% of the global emperor penguin population.

But recent satellite images have shown that the population is crashing, “with almost no breeding success in 2016, 2017 and 2018,” researchers wrote in a paper reporting their findings, published Thursday in the

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