09/02/2026
A grizzly bear enjoys a snack while cooling off in the river, filmed earlier this summer.
For bears, September marks the peak of hyperphagia – or extreme hunger (“hyper” means over and “phagia” means hunger), triggered by hormonal changes that are responding to the changing seasons, signaling that winter hibernation is approaching. The goal is to build up fat reserves to get through the long winter. During this time, bears will spend up to 22 hours a day foraging, with the goal of consuming up to 20,000 calories.
What does that look like in human food?
🍔17 full McDonald’s Big Mac meals (burger, medium fries, and a medium soft drink)
🍩105 Krispy Kreme doughnuts
🍦About 17 pints of Ben & Jerry’s ice cream
I don’t know about you, but our stomachs hurt just thinking about that!
—
Hyperphagia is a busy and active time for bears, so please take extra caution when recreating in bear country. Always carry bear spray, be alert, make noise, and preferably travel in groups. Be safe and have fun!
📹: ETA Naturalist Rafael Sandoval, filmed from a distance using a SWAROVSKI OPTIK Outdoor spotting scope and an Ollin phone adapter.