Smithsonian's National Zoo:
An hour and a half after giving birth to the first cub
Smithsonian's National Zoo:
Naba with cubs on Sept. 22.
Smithsonian's National Zoo:
Naba's first two cubs.
Smithsonian's National Zoo:
Two of Naba's cubs nursing after birth.
Smithsonian's National Zoo:
Two of Naba's cubs nurse.
Smithsonian's National Zoo:
Naba with three cubs.