Mass starvation has wiped out thousands of penguin chicks in Antarctica, with unusually thick sea ice forcing their parents to forage further for food in what conservationists call a "catastrophic breeding failure".
Tens of thousands of Antarctic penguins are estimated to be unable to return to their colony after a massive iceberg grounded there, according to a newly published study.
Mass starvation has wiped out thousands of penguin chicks in Antarctica, with unusually thick sea ice forcing their parents to forage further for food in what conservationists call a "catastrophic breeding failure".
Tens of thousands of Antarctic penguins are estimated to be unable to return to their colony after a massive iceberg grounded there, according to a newly published study.