Keepers are now monitoring Tian Tian, the UK's only female giant panda, around the clock and say she could give birth to her first cub or cubs any time in the next two weeks.
Iain Valentine, of the Royal Zoological Society of Scotland, said: "Keepers are monitoring Tian Tian on a 24-hour basis. They are able to log in from their computers and phones at home just to make sure everything is ok with her."
Tian Tian and her male companion Yang Guang arrived at Edinburgh Zoo on December 4 2011 from China.
Picture: Gordon Terris.