A series that tries to condense approximately 4.6 billion years of history into five hours, is inevitably going to be highly selective about what to include. The astromological impacts, the changing geology, and the consequential impacts on the atmosphere, were fascinating. The origins of plant and animal life and their subsequent developments were also interesting. The part I found wanting, was an exlanation for the origins and devlopment of fungi. Whilst plant life was demonstrated to have evolved from the sea, when it hit land it developed a symbiosis with fungi, according to the program, resulting in the origin of lichen. But there was no expalnation of where the fungi originated. Furthermore, some early species of fungi were apparently enormous, towering over everything else that grew at the time. Yet, how these enormous structures came to exist, when according to the program the world was still made of bare rock with little or no organic material, was not explained.
The series could have been longer and more detailed, but it is in my view, one of the most important natural history series in a long time. It clearly demonstrates how major and sometimes minor changes to the environment can produce dynamic and sometimes unexpected and profound changes to the ability of life to maintain itself.
In these present times of uncertain climatic forces, this is a very timely series.
