Apologies for the long radio silence. This month has been full of distractions, and not just the election. I went to London for a few days to report on a scientific meeting about evolution and cranking out a story about it. It was published this Tuesday by Quanta.

Seventy years ago, geneticists and other researchers created a new framework for investigating Darwin’s theory of evolution. The Modern Synthesis, as it’s now known, has been a powerful tool ever since. But in recent years, some scientists have argued that it needs an overhaul. They’ve developed a new framework that they call an “Extended Evolutionary Synthesis.” They hold that we need a broader understanding of the causes of evolutionary change. Scientists need to take into account the constraints on development, for example. They need to explore how species shape their environment, which in turn shapes their evolution. Continue reading “Friday’s Elk, November 25, 2016”

Quanta Magazine, November 22, 2016

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Kevin Laland looked out across the meeting room at a couple hundred people gathered for a conference on the future of evolutionary biology. A colleague sidled up next to him and asked how he thought things were going.

“I think it’s going quite well,” Laland said. “It hasn’t gone to fisticuffs yet.”

Laland is an evolutionary biologist who works at the University of St. Andrews in Scotland. On a chilly gray November day, he came down to London to co-host a meeting at the Royal Society called “New Trends in Evolutionary Biology.”

Continue reading “Scientists Seek to Update Evolution”

The New York Times, November 22, 2016

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The Arctic Ocean may seem remote and forbidding, but to birds, whales and other animals, it’s a top-notch dining destination.

“It’s a great place to get food in the summertime, so animals are flying or swimming thousands of miles to get there,” said Kevin R. Arrigo, a biological oceanographer at Stanford University.

But the menu is changing. Confirming earlier research, scientists reported Wednesday that global warming is altering the ecology of the Arctic Ocean on a huge scale.

Continue reading “Global Warming Alters Arctic Food Chain, Scientists Say, With Unforeseeable Results”

This week I revisited the science of Ebola.

In 2014, in the midst of the the outbreak in West Africa, I wrote a couple articles for the New York Times about how Ebola works and how it evolved. At the time, there were a lot of claims that Ebola was on the verge of becoming an airborne nightmare, which I tried to debunk with inteviews with virologists and evolutionary biologists. Afterwards, I wrote a new chapter about Ebola for the second edition of my book A Planet of Viruses, which came out last year. Continue reading “Friday’s Elk, November 4, 2016”

The New York Times, November 3, 2016

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The Ebola epidemic that tore through West Africa in 2014 claimed 11,310 lives, far more than any previous outbreak. A combination of factors contributed to its savagery, among them a mobile population, crumbling public health systems, official neglect and hazardous burial practices.

But new research suggests another impetus: The virus may have evolved a new weapon against its human hosts. In studies published on Thursday in the journal Cell, two teams of scientists report that a genetic mutation may have made Ebola more deadly by improving the virus’s ability to enter human cells.

Continue reading “Ebola Evolved Into Deadlier Enemy During the African Epidemic”