Brian Resnick Retweeted Katmai National Park
Brian Resnick added,
Katmai National ParkVerified account @KatmaiNPS
How can these bears already be so fat, but still hungry?
Before hibernation, bears enter a state known as hyperphagia. In simple terms, it's a disabling of a chemical switch that tells them they're full. For weeks they won’t know the feeling of a satisfied appetite #FatBearWeek pic.twitter.com/KSKcngq3vT
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