this winter, both of them are after the same female. 14-year-old milsar. she is the most popular female in the group and has mated with many of the males in the past. among them, females with experience raising young are in demand. he is doing his best to get close to milsar. he goes after her no matter where she goes. but she doesn't reciprocate. the tree behind her starts to shake. it is him, making a desperate attempt to get her to look in his direction. but she appears to have no interest in him. finally, he tries to a more direct tactic. he approaches her, as though offering a kiss. this last ditch attempt to in more successful. >> translator: i'm 83 now so i'm old, just like that bus monkey. but i can't rival his persistence. >> eventually, the number two mondaydy that she chooses as her partner. he may be the leader, but when it comes to mating, it looks like it will be a long, lonely winter for this elder of the troop. >>> millions of chinese migrant workers up root thier lives to find jobs, and many bring their children with them. it's difficult f