Part 3: Survival When David Attenborough first visited the Great Barrier Reef in 1957, he considered it the most spectacular place in the natural world and he assumed that it would last forever. Since then the coral has been dying at an unprecedented rate. In this episode he undertakes his most important mission to understand what the next few decades hold for this remarkable community of animals, as well as what is being done to save it. On his journey, David uncovers the remarkable ways in which scientists are trying to preserve the reef and embarks on an ambitious exploration of his own, the deepest dive ever on the reef. But despite the discoveries now being made by scientists and in the reef's furthest reaches, David fears for the future of this incredibly complex and beautiful ecosystem so vital for the world's oceans.
At the height of the Zambian dry season, three lionesses in the Nsefu pride are pregnant. Even with protection from fellow lions, the stakes couldn't be higher, from cub-hungry predators like leopards and hyenas to the hunting duties necessary to sustain the group. Can the pride meet the demands of their growing population?
At the very northern edge of North America is Ellesmere Island, where the unforgiving Arctic winds tear through the tundra, dipping temperatures to 40 below zero. Running through this shifting sea of snow and ice is one of the most hardened predators on the planet, the White Wolf. But as the spring melt approaches, these roaming hunters must adapt to being tethered parents as new additions to the pack have just been born. With their herds of prey continuing to move, we witness a desperate race to keep up and bring back a kill to the hungry mothers and cubs. Traveling farther and farther away from their den each day puts these hunters and their children at risk in this fight for survival.
2018 • Nature