The Arrival of the Fittest

The Arrival of the Fittest

4.11 - 1251 ratings - Source

The power of Darwina€™s natural selection is beyond doubt, explaining how useful adaptations are preserved over generations. But the biggest mystery about evolution eluded him: how those adaptations arise in the first place. Can random mutations over a mere 3.8 billion years solely be responsible for wings, eyeballs, knees, photosynthesis, and the rest of naturea€™s creative marvels? And by calling these mutations a€˜randoma€™, are we not just admitting our own ignorance? What if we could now uncover the wellspring of all biological innovation? Renowned evolutionary biologist Andreas Wagner presents the missing piece in Darwina€™s theory. Using cutting-edge experimental and computational technologies, he has found that adaptations are not just driven by chance, but by a set of laws that allow nature to discover new molecules and mechanisms in a fraction of the time that random variation would take. Consider the Arctic cod, a fish that lives in waters cold enough to turn the internal fluids of most organisms into ice crystals. And yet, the Arctic cod survives by producing a€˜natural anti-freezea€™, proteins that lower the freezing temperature of its body fluids. The invention of those proteins is an archetypal example of naturea€™s enormous powers of creativity. Meticulously researched, carefully argued, and full of fascinating examples from the animal kingdom, Arrival of the Fittest offers up the final puzzle piece in the mystery of lifea€™s rich diversity.Different tissues express different members of this family. Not all of them serve to contract muscles ... (2000). For its relationship to eyeless and fruit fly eye development see Gehring and Ikeo (1999). A wiring diagram is an abstraction that allows our eyes to grasp a circuita#39;s genotype at a glance. It is easily augmented throughanbsp;...

Title:The Arrival of the Fittest
Author:Andreas Wagner
Publisher:Oneworld Publications - 2014-11-11


You Must CONTINUE and create a free account to access unlimited downloads & streaming