A panda at Wolong national nature reserve in Sichuan province, China, called You You has given birth today to the first ever IVF panda cub named LuLu.

Artificial insemination is commonly used for breeding pandas. In 2006 there were 30 cubs born from donor sperm. However, using panda sperm that has been frozen earlier - instead of from an immediate donor - had not been successful before.