Zhen Zhen the adorable cub that was born almost two years ago has been weaned away from her mother and is doing well.

San Diego is now watching and waiting to see if Bai Yun comes into estrus this year. Both Bai Yun and Gao Gao have had their annual check-up and pronounced fit and healthy.

Gao Gao is getting ready for the breeding season with leg-cock urination, scent marking and lots of bleating.

Bai Yun is now 17 years old and her last cycle was unsual compared to the ones before. They just have to watch and wait.