Roars, barks and squeaks reveal caring bond between mothers and cubs

Giant pandas baa like sheep to say "I love you" and warble a cheerful "I do" when wooed by a suitor, according to staff members at a panda breeding center in Southwest China's Sichuan province.

Researchers there have decoded 13 different kinds of giant panda vocalizations in a surprising new insight into the private life of the reclusive creatures.