Bears have been spending a lot of time eating acorns, one of their main food sources in the fall. This week in Yosemite Valley, bears have been observed high up in oak trees eating acorns for hours at a time. To reduce bears and other wildlife from becoming habituated to human presence, be sure to give all animals space while observing them. If you see a bear foraging naturally, please be respectful and remember to stay at least 150 feet away.