Shanghai Zoo is seeking public's help to name four South China tiger cubs born last month, authorities announced on Wednesday. The four female cubs were born on July 4. Lu Lu has done outstandingly well in taking care of the quadruplets even though this is her first time to be a mother. The South China tiger falls under China's first-class national protection and has been listed as a critically endangered species by the International Union for Conservation of Nature (IUCN) since 1996.