Gabrielle Walker follows Paul Hoffman as he travels the globe to find evidence supporting his theory that a climatic cataclysm 700 million years ago triggered the great Cambrian Explosion. Describes some of the most picturesque and formidable places on Earth, from the polar ice cap to the Australian outback and the African desert.
'Paul Hoffman is a charismatic genius who has devoted himlself to proving what will be one of the most important scientific theories of the 21st century. He is fortunate to have a writer as gifted as Gabrielle Walker to document his extraordinary intellectual adventures. This is a fascinating story, brilliantly told.' Simon Singh, author of Fermat's Last Theorem

Bat Detectors





