A squirrel knocks pinecones off of a tree as it forages at Cranberry Lake, Thursday, Aug. 20, 2026, in Anacortes, Wash. (AP Photo/Lindsey Wasson)

A dragonfly flies by at Cranberry Lake in Anacortes, Wash., Thursday, Aug. 20, 2026. (AP Photo/Lindsey Wasson)

A squirrel knocks pinecones off of a tree as it forages at Cranberry Lake, Thursday, Aug. 20, 2026, in Anacortes, Wash. (AP Photo/Lindsey Wasson)

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A marmot named 9 sits outside of her den Thursday, Aug. 6, 2026, in Gothic, Colo. (AP Photo/Brittany Peterson)

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Researchers mark a marmot with dye for identification Friday, Aug. 7, 2026, in Gothic, Colo. (AP Photo/Brittany Peterson)

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A marmot pup looks out from a trap Thursday, Aug. 6, 2026, in Gothic, Colo. (AP Photo/Brittany Peterson)

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Columbia University undergraduate student Isabel Norman, left, learns how to weigh a marmot under the supervision of Katie Adler, a doctoral student at the University of California, Los Angeles, Thursday, Aug. 6, 2026, in Gothic, Colo. (AP Photo/Brittany Peterson)

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A marmot named 9 sits with one of her pups Thursday, Aug. 6, 2026, in Gothic, Colo. (AP Photo/Brittany Peterson)

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Researchers swab the cheek of a marmot Thursday, Aug. 6, 2026, in Gothic, Colo. (AP Photo/Brittany Peterson)

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A researcher measures a marmot's foot Thursday, Aug. 6, 2026, in Gothic, Colo. (AP Photo/Brittany Peterson)