Sandwiched between the Limpopo and Luvuvhu rivers in South Africa lies Pafuri, a multi-habitat area with astonishingly biodiverse animal and plant life--including the famous fever tree, rumored to cause illness to anyone who lives near it. Dive into this secret corner of Kruger National Park.
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.
For most of the Earth's history, life consisted of the simplest organisms; but then something happened that would give rise to staggering diversity, and, ultimately, life as complex as that which we see today. Scientists are still struggling to figure out just what that was.