Photo gallery: The Iditarod trail (part 4) - DVM
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Photo gallery: The Iditarod trail (part 4)

DVM360 MAGAZINE

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Temperatures can dip to -40-degrees F. While dogs run best at night, the temperatures need to climb to just above 0 for optimal performance, explains Dr. Vern Otte.



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Source: DVM360 MAGAZINE,
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