By Sara Amundson and Kitty Block
Grizzly 399, often called the world’s most famous grizzly bear, has a fan base of wildlife watchers that numbers in the hundreds of thousands. Each year, dozens of paparazzi attempt to record her every waking moment, from the time she emerges from her den in the Greater Yellowstone Ecosystem in the spring until the time she goes back into hibernation in the late fall. She even has two entire books devoted to her.