It is now virtually certain that Tian Tian, the female giant panda at Edinburgh Zoo, is no longer pregnant. Following artificial insemination in April, the zoo has been tracking Tian Tian’s hormone levels. The one to watch is progesterone. At
A black and white Christmas
“The pandas are coming!” announced Edinburgh Zoo’s press office on Monday morning. The reason, I discovered, was not to proclaim the transfer of seminal fluid from male to female panda (cause for celebration as that might be), but because the