Panda to travel to Tokyo in reproduction attempt

The video discusses efforts to breed pandas in captivity through collaborations between various zoos, including the Zoológico de Bueno and the San Diego Zoological Society. Despite multiple visits by the giant panda Ling Ling to the Chapultepec Zoo, successful breeding has not yet occurred. The video highlights the challenges faced in panda reproduction efforts.

¿Qué se ha determinado hacer con una de las hembras del panda?

¿Qué ha impedido que las hembras queden preñadas según el texto?