As the avian flu spreads worldwide, it's devastating marine mammal populations

By Nathan Rott

Published November 14, 2025 at 4:54 AM EST

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The avian flu is devastating marine mammal populations. A new survey finds that nearly half of breeding females in the world's largest population of southern elephant seals were killed by the virus.

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Nathan Rott

Nathan (Nate) Rott is a correspondent on NPR's Science Desk, where he reports on the natural world and humanity's relationship to it.

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As the avian flu spreads worldwide, it's devastating marine mammal populations

Support quality journalism, like the story above, with your gift right now.

Support quality journalism, like the story above,
with your gift right now.