Liver trouble killed a giant panda cub that died suddenly last month less, than a week after its surprise birth at the National Zoo, the institute's chief veterinarian said Thursday.
National Zoo officials say the 6-day-old panda cub that died had abnormalities on its liver and fluid in its abdomen, but they don't yet know the cause of death.
The giant panda cub born a week ago at the National Zoo in Washington has died, saddening zoo officials and visitors who had heralded its unexpected arrival.