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Rate of Evolution

Indeed, the study led by Dr. Kong showed that in Iceland, there has been measurable genetic selection against the genetic variations that predict more years of education in that population just within the last century.
- DAVID REICH, How Genetics Is Changing Our Understanding of ‘Race’, NYT, MARCH 23, 2018


Not all species are adjusting to this warming at the same rate, and, as a result, some are falling out of step.

Scientists who study the changes in plants and animals triggered by seasons have a term for this: phenological mismatch. ...
In some cases, species might simply adapt by shifting their ranges, or eating different foods. But if species can’t adapt quickly enough, these mismatches could have “significant negative impacts,” said Madeleine Rubenstein, a biologist at the United States Geological Survey’s National Climate Change and Wildlife Science Center.
“If you look at the past history of climate on earth, there has never been such a dramatic, rapid, change in the climate,” said Andrea Santangeli, a postdoctoral researcher at the Finnish Museum of Natural History. “Species have to respond really fast,” he said, “that’s really unprecedented.”

Here are five examples of mismatch, just one of the many threats that species face from global warming, that scientists have discovered so far: ...
There is some good news for the snowshoe hare, however. Where evolution was previously thought to take millions of years, scientists now think an animal like the hare could adapt in five to 10 generations....
- Livia Albeck-Ripka and Brad Plumer, 5 Plants and Animals Utterly Confused by Climate Change, NYT, April 4, 2018


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