Word: naturale
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Dates: during 2000-2009
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Even oil- and gas-rich states are panicking. In Alaska, for instance, sinking oil prices have some state legislators scrambling to lock in education budgets for the next few years as the state prepares to dip into its savings to cover a shortfall of approximately $1.65 billion this year and...
It's only fitting to recognize the accomplishments of a great biologist. But there's a risk to all this Darwinmania: some people may come away with a fundamental misunderstanding about the science of evolution. Once Darwin mailed his manuscript of On the Origin of Species by Means of Natural...
It's been 1.5 billion years or more since our ancestors split off from our fungal cousins. How did the genome of our ancestor change so that it could produce two-legged primates? One part of the answer is that mutations over time altered genes that encode proteins, and some...
Darwin proposed that natural selection could gradually transform a species. Scientists have observed thousands of cases of natural selection in action. They've documented that beaks of finches on the Galápagos Islands have gotten thicker when droughts forced the birds to crack tough seeds to survive. They've observed...
Some researchers argue that many patterns of nature - such as the large number of species in the tropics - cannot be reduced to the effect of natural selection on individuals. They may be following rules of their own. "Which of these ideas is going to actually survive and prove fruitful is...