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Decoding Four Billion Years of Life, from Ancient Fossils to DNA
by Neil ShubinThe author of the best-selling Your Inner Fish gives us a lively and accessible account of the great transformations in the history of life on Earth--a new view of the evolution of human and animal life that explains how the incredible diversity of life on our planet came to be.
Over billions of years, ancient fish evolved to walk on land, reptiles transformed into birds that fly, and apelike primates evolved into humans that walk on two legs, talk, and write. For more than a century, paleontologists have traveled the globe to find fossils that show how such changes have happened.
We have now arrived at a remarkable moment—prehistoric fossils coupled with new DNA technology have given us the tools to answer some of the basic questions of our existence: How do big changes in evolution happen? Is our presence on Earth the product of mere chance? This new science reveals a multibillion-year evolutionary history filled with twists and turns, trial and error, accident and invention.
In Some Assembly Required, Neil Shubin takes readers on a journey of discovery spanning centuries, as explorers and scientists seek to understand the origins of life's immense diversity.
Breath of Fresh Air
When Napoleon Bonaparte invaded Egypt in 1798, he brought more than ships, soldiers, and weapons with his army. Seeing himself as a scientist, he wanted to transform Egypt by helping it control the Nile, improve its standard of living, and understand its cultural and natural history. His team included some of France's leading engineers and scientists. Among them was Étienne Geoffroy Saint-Hilaire (1772–1844).
Saint-Hilaire, at twenty-six, was a scientific prodigy. Already chair of zoology at the Museum of Natural History in Paris, he was destined to become one of the greatest anatomists of all time. Even in his twenties, he distinguished himself with his anatomical descriptions of mammals and fish. In Napoleon's retinue he had the exhilarating task of dissecting, analyzing, and naming many of the species Napoleon's teams were finding in the wadis, oases, and rivers of Egypt. One of them was a fish that the head of the Paris museum later...
There were times I caught myself unable to stop reading, even though in general I'm not at all interested in worm DNA. Like a good television series, the pacing never flinches. Each chapter leaves you wondering what will come next. There is something for everyone here — scientific history, the science of evolution, and information that can help us speculate how life will evolve in the future (with or without human tinkering). Neil Shubin has written a masterful book, and I feel both lucky and more intelligent for having read it...continued
Full Review (659 words)
(Reviewed by Ian Muehlenhaus).
One of the most interesting concepts discussed in Some Assembly Required is that almost all life is primarily comprised of borrowed components. We share 95 percent of our DNA with chimpanzees. Only two percent of the human genome is unique to our species. The rest of us is adopted, adapted, tweaked and outright stolen.
Viruses make up at least eight percent of the human genome. Being made up of virus detritus is not, as you might first think, a curse. In fact, viruses are crucial to the survival and evolution of our species.
For example: long ago, our mammalian ancestors were infected by a virus incredibly similar to today's HIV. Rather than expunging it outright, our cells repurposed it. The DNA from this virus, combining with the ...
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