In this final episode we complete our journey, travelling back from the March equinox to the end of June. Kate Humble is in the Arctic at a place where spring arrives with a bang, whilst Helen Czerski chases a tornado to show how the earth's angle of tilt creates the most extreme weather on earth.
David Attenborough asks three key questions: how and why did Darwin come up with his theory of evolution? Why do we think he was right? And why is it more important now than ever before?
David embarks on an extraordinary journey to unravel one of nature’s most gripping stories – the evolution of flying animals. He begins by exploring the unexpectedly advanced world of the very first flyers – the insects. Stunning new images give us fresh insights into an astonishing story – from the first dragonfly-like creatures that emerged from the water to fly on four wings, to the beetles that built hard wing-cases to colonise the land, and butterflies capable of migrating halfway round the globe. He concludes by investigating the remarkable skills of jet fighter of the insect world – the humble but surprisingly acrobatic fly.
44m • 2015 • David Attenborough's Conquest of the Skies
The journey begins on the Galapagos' west side at the youngest and most volcanically active islands in the archipelago, Isabela and Fernandina, which are home to a richly diverse wildlife scene. Here, Liz and the team journey into the clouds above Wolf, the tallest volcano in the Galapagos, where they join a group of biologists hunting for the elusive pink iguana, which teeters on the edge of extinction. But how and why did it come to live on the top of a volcano? Back on the research vessel, Liz boards Alucia's Triton submersible to descend a kilometre into the ocean abyss in search of a new species hiding in the darkness. Liz also travels to one of the most remote locations in the Galapagos, Alcedo Volcano, in search of the largest population of giant tortoises. Plagued by drought in recent months, scientists are keen to find out how this prehistoric species has fared. Finally, Liz helps out with a groundbreaking science experiment to x-ray marine iguanas that have so far stunned the scientific community with a new mutation. As with all life on these remote islands, the key to survival is adaptation.
58m • 2017 • Galapagos with Liz Bonnin
This episode reveals how mammals developed from tiny nocturnal forest dwellers to the dominant form of life on the planet following the death of the dinosaurs. David explains how the meteoric rise of mammals led to an astounding diversity of life and laid the foundations for the ascent of man.
59m • 2013 • Rise of Animals: Triumph of the Vertebrates