One basic need connects all life on earth - the need to breed. But for a few creatures, the odds of success are overwhelmingly stacked against them. Some must find a partner when there are none to be found, while others must find a way to succeed without breeding at all. And some must try and adapt in a world unrecognisable from when they were born. These are animals that have evolved some of the most extraordinary mating strategies of all, and now they face a new challenge in the most successful breeder of all: us. As a consequence of our success, we face a mass extinction event like no other in human history. But there is hope. Scientific breakthroughs have led to extraordinary solutions in helping other species to reproduce. In a United States federal government facility in Colorado, an incredibly precious animal may be the key to secure the future of her species. And the successful conservation of perhaps the most iconic endangered animal on the planet, the giant panda, has proved that humans can be a force for good.

Originally released by BBC Worldwide Learning, 2021. Streaming video file encoded with permission for digital streaming by Infobase on June 03, 2022.