A cellphone video that has been seen more than 5 million times after KCRA 3 shared it on Facebook Tuesday. It shows a mother bear and her two cubs swimming at Pope Beach in Lake Tahoe, near Camp Richardson. It’s not every day you see a family of bears playing in a public lake — unless you’re a biologist. “At Lake Tahoe, we get bears down at the lake frequently,” said Jason Holley, a supervising wildlife biologist with the California Department of Fish and Wildlife.