Mazel tov to Bai Yun, a mommy panda bear at the San Diego Zoo who gave birth to a four-ounce panda cub on Wednesday morning. The baby’s gender will be unknown until the mama lets zoologists near her cub, who was the size of a stick of butter when born.
Bai Yun has given birth to a cub every two years since 1999. That is rare for endangered panda bears, since the lady bears are only in heat and ready for some sweet lovin’ for about 48 hours a year. With only 1,600 panda bears left on earth to begin with, a newborn baby panda is a big deal. (Especially if you’re obsessed.) Keep reading »