Two red panda babies which were born at Drusillas Park in Alfriston earlier in the summer are growing fast and have more than doubled in size according to zoo keepers.
Since their arrival on June 16, the eight week old cubs now weigh 585g and 532g compared to just 242g and 238g at eight days old.
The twins, which are a boy and a girl, are also getting darker by the day. Red pandas are born with pale fur which deepens to the adult colouration at around day 50.
Zoo keepers said the cubs at Drusillas are quickly developing the distinctive red-brown coat and whitish facial markings of their parents.
Keepers said although the babies are still being looked after in the nest box, they are more active and becoming inquisitive about the world outside and are likely to start venturing out by the end of the month.
From time to time, mum Mulan can be seen moving the babies from one box to another.
Zoo keeper Katherine Gibson said: “Both panda cubs are doing very well indeed. They are still being moved around from house to house by mum Mulan, although they are getting bigger and bigger every day so it’s becoming a bit more of a chore for her to carry them. They really have developed their own personalities and are very aware of our keepers’ presence. They have started to move around on their own inside the houses and have been seen venturing close to the house entrance recently. I can’t wait until they come outside.”