Dozens of panda cubs have started school in southwest China's Sichuan province. There're forty-two in the class, and they're being taught how to hone their instincts and the essential survival skills. None of them have yet celebrated the first birthday. The eldest is about eight months, and the youngest about six. Feeders at the center say they're now beginning to recognise sounds, climb trees and imitate their mother's behavior, such as biting into leaves.