Humans

Many people associate France today with the production of great wines. But winemaking isn't native to the French. Patrick McGovern, an archaeologist of fermented beverages, has dated the beginning of viniculture in France to around 500 B.C. and contact with the Etruscans.

When doctors run out of clues on how to treat a cancer patient, they sometimes order a scan of all the patient's genes. But such a test can turn up unexpected results, such as greater risk of another disease. When are doctors obligated to tell the patient what they know? And do patients have the right not to know?

Scenes of destroyed homes and businesses were common following the recent Oklahoma tornadoes. David Prevatt, a structural engineer at the University of Florida, says that improving resistance to tornadoes will require better building materials and techniques, plus a strong dose of political will.

In her new book Scatter, Adapt, and Remember: How Humans Will Survive a Mass Extinction writer Annalee Newitz looks back at Earth's previous mass extinctions to see what lessons might be learned, and how earthlings might prepare themselves to survive a future planet-wide catastrophe.

For nearly 50 years, neuroscientist Suzanne Corkin worked with Henry Molaison, who lost most of his memory in 1953 after experimental surgery for severe seizures. Their work together taught us much of what we know today about memory, and she writes about Molaison and their work in her new book.

The new edition of the DSM, the so-called "Bible" of psychiatry, is out. But many psychiatrists and psychologists say the manual's approach is outdated, boxing mental illness into discrete categories like schizophrenia or bipolar disorder, when very little is known about the underlying causes of disease.

"Office hours are some of my favorite hours of the week," says professor Tom Carlson, a medical doctor, ethnobotanist and instructor of 1700 students annually at the University of California, Berkeley. One of Carlson's former students, SciFri associate senior producer Christopher Intagliata, says Carlson's class got him on the path toward science. In this "Teacher Feature," Intagliata tells his former teacher what the class meant to him.

A series of tornadoes struck the central United States this week, including a powerful storm in Oklahoma that killed at least 24 people. Marshall Shepherd, the president of the American Meteorological Society, describes the ingredients of major tornadoes, and how they are predicted.

Smartphones, tablets and computers could help seniors stay connected to their communities and families. But a hefty price tag, steep learning curves, and designs meant for younger eyes and hands could keep some older adults from logging on. Guests discuss the best ways for seniors to tackle new technology, and how devices can be adapted to accommodate older users.

Scientists say climate change could increase pests and weeds, lengthen growing seasons and turn dry soil to dust. Farmers are already on the offensive, adopting no-till cropping methods to conserve water and experimenting with different seeds. And scientists are using a technique called gene silencing to develop new crops--without tinkering with the plants' DNA.