Children, including babies, are required to acquire entry passes. Starting Saturday through Feb. 9, the National Zoo will ... be obtained at the Woodley Park/Zoo, Cleveland Park and Dupont Circle ...

Admission to the National Zoo is free; however, visitors will need a timed pass to enter. Children and babies will also need a pass.Passes can be reserved ahead of time on the zoo's website.

An extra bump in visitors and in-park revenue. "We've been waiting for this for a really long time," said panda fan Wyatt Brewer. For those who can't make it to the National Zoo to see the pandas ...