Researchers at China's breeding and research centre were concerned that five-year-old Ke Lin and her partner Yongyong never seemed to be in the mood. So they played the couple a video of pandas mating in the wild to in an effort to get them to mate.
"Every time Yongyong tried to mount her, Ke Lin fought him off and we were worried she was going to miss her three-day breeding cycle," said a spokesman.
"So we played them the film and she took great interest in it. After that there was no stopping her and they mated successfully.
http://www.telegraph.co.uk/news/worl...o-to-mate.html