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As part of her ongoing series, Dr. Thea Bechshoft responds to a reader's question with a thoughtful and surprising answer.

Beluga Bits relies on visual data that volunteers classify, helping scientists learn more about these fascinating whales.

In a report published today in Nature Climate Change, scientists calculate “timelines of risk” for polar bears, exploring two greenhouse gas scenarios.

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A new study highlights the need for more effective den-detection methods to protect denning moms and cubs from heavy equipment and other disturbances.