Filmed over 3 years, on 6 continents, and in 23 countries, this five-part series, narrated by Sir David Attenborough, tells the stories of astonishing animal behaviors shaped by the environments they inhabit. Each habitat has its own unique challenges, but as the world changes rapidly around them, some parents have to adapt to a world shaped by humans. The stakes couldn’t be higher – success for all parents ensures the future of life on our planet.