The songs, calls, clicks, and bumps of beluga whales, bearded seals, bowhead whales, ribbon seals, and walrus are the stars of this episode, which also features the co-author of a recent study that used bioacoustics to assess how variation in sea surface temperature and sea ice extent affects these animals' populations in the northern Bering Sea.

Dr. Howard Rosenbaum is the director of the Wildlife Conservation Society’s Ocean Giants Program, and his team is creating an acoustic baseline for how marine noise pollution and climate change are affecting large mammals in this area of the Arctic.

Learn more about Dr. Rosenbaum's team's study here and press play to hear the fascinating sounds they captured.

Here's this episode's top news:

• Conservationists set the record straight on COVID-19’s wildlife links
• Record-high global tree cover loss driven by agriculture
• In Afghanistan, a new national park carries hopes for conservation and peace

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