For nearly four billion years, life has been swimming and shuffling across our planet. But how can we deduce what it was like? You don’t need Sherlock Holmes to track the clues of life that came before – call on an anthropologist or biologist. From fossils to alien radio signals, find out how to interpret the clues that living organisms leave behind, and hear adventure stories in the evolution of life on Earth.
Also, the discovery of a dino-eating crocodile and the tale of scientist/explorer/polymath Idaho Brown.
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