Yuan Yuan the female of the breeding pair that was sent to Taipei Taiwan in 2008, has showing signs of being estrus. This is the first time that she has displayed signs. Unfortunately Tuan Tuan is showing no signs of wanting to mate with her.

Whilst they are of the same age, females become sexually mature at a younger age than males.

Staff will put the pair together to see if a mating will occur but a cub is not expected this year.