The National Zoo released video of its newest panda, five-month-old Bei Bei, taking his first steps outside. Last month video of Bei Bei's father, Tian Tian, frolicking in the snow went viral.
August 3, 2017 — Andrew Golden
July 28, 2017 — Andrew Golden and Larry Greenemeier
July 27, 2017 — Lydia Chain, Michael Lemonick and Lee Billings