Now in his eighth week, CJ the Sumatran Tiger cub is walking! He is a hefty 16 pounds and almost all of his teeth have appeared. He is spending lots of time following mom around, exploring the den and testing out his walking with little bouts of jumping. CJ is very playful with mom as you can see in the video below. He is not eating solid food yet, but has investigated mom's meals to see what it's all about.