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Tuesday

Just this month, California declared a state of emergency due to rising cases of bird flu in dairy cattle. BeritK/Getty Images hide caption

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BeritK/Getty Images

Monday

Turkeys at a farm as California declares state of emergency to prevent new public health crisis on Bird flu in Pescadero, California, in December. Anadolu/via Getty Images hide caption

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Anadolu/via Getty Images

12/30 health seg - Bird flu consumer q & a

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The thick-billed parrot, the only living parrot species native to the U.S., once roamed from the American Southwest all the way south to Venezuela. Now, the only wild population remaining lives high in the pine forests of Mexico's Sierra Madre. Laura Vero/San Diego Zoo Wildlife Alliance hide caption

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Laura Vero/San Diego Zoo Wildlife Alliance

Saturday

This photo provided by the Metro Richmond Zoo shows a baby pygmy hippo during a vet exam on Dec. 14, 2024, in Moseley, Va. Metro Richmond Zoo/AP hide caption

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Metro Richmond Zoo/AP

Friday

The skull of a fox goes beyond just protecting its sensory organs. It reduces impact forces. John Conrad/Getty Images/Corbis Documentary RF hide caption

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John Conrad/Getty Images/Corbis Documentary RF

Foxes diving through snow

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Squirrels are omnivores, eating nuts, fruit, small insects — and according to a study published in the Journal of Ethology — voles. Sonja Wild, UC Davis hide caption

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Sonja Wild, UC Davis

Thursday

A cougar is seen in a forest in autumn. The Wild Felid Advocacy Center of Washington says bird flu has killed 20 of its big cats, including cougars, in the past month. iStock/Getty Images hide caption

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iStock/Getty Images
WANG Zhao/Getty Images

Wednesday

Sophie Hediger takes 2nd place during the FIS Snowboard Cross World Cup Men's and Women's Snowboard Cross on Jan. 26, 2024, in St. Moritz, Switzerland. Millo Moravski/Agence Zoom/Getty Images hide caption

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Millo Moravski/Agence Zoom/Getty Images

An open burr of the American chestnut tree. Functionally extinct since the mid-20th century, the American Chestnut Foundation has been spearheading a multi-pronged approach to bring the tree back to life. The American Chestnut Foundation hide caption

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The American Chestnut Foundation

Tuesday

The average temperature across the globe in 2024 set a record. Climate change is helping drive longer and more intense heat waves. Patrick T. Fallon/AFP via Getty Images hide caption

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Patrick T. Fallon/AFP via Getty Images

2023 was extremely hot. Then came 2024

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The McMurdo Station is a United States Antarctic Research Center on the south tip of Ross Island. John Brown/Getty Images hide caption

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John Brown/Getty Images