WILDLIFE: Yosemite's black bears eat less junk food -- study Published: Wednesday, March 5, 2014 Bears in California's Yosemite National Park have a healthier diet than ever before, a new study shows. Please subscribe to Greenwire to read the full story. Username: Password: Forgot your access codes? Recover them. Not a subscriber? Sign up for a trial. Ready to subscribe? Click here.