Eyes (Half) Wide Open

Aug. 30, 2012: By day 45, we now know the cub is a boy, and he's starting to open his eyes. He'll stay sleepy-looking for a while until his peepers pop fully in another 20 days. At a whopping 4 pounds and 16 inches long, the little man proves he's a pro at nursing from his mother, Bai Yun.

So what's his name? San Diego Zoo follows the Chinese cultural tradition of naming the giant panda after it is 100 days old. Public name suggestions are submitted in Chinese pinyin, the official method to transcribe Chinese characters into Latin script. Once the options are narrowed, a public vote will decide what the newborn will be called.