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Hello....Is There Anybody Out There?

The SETI (Search for Extraterrestrial Intelligence) Institute's Jill Tarter has spent decades searching for the signals that would tell us we aren't alone in the cosmos. Tarter discusses the hunt, and what the presence of intelligent life elsewhere might tell us about our own future on Earth.

What Does 'Sexual Coercion' Say About A Society?

Anthropologists have long documented the differences in the extent of sexual coercion — including rape — in different human societies. But is it a vestige of evolutionary history, indicative of cultural activity or governed by power dynamics between females and males?

College Divestment Campaigns Creating Passionate Environmentalists

Taking a page from the playbook of decades past, college students are once again pressuring schools to pull investment funding from specific sectors. This time it's big oil and coal companies. But these campaigns have effects beyond the university — they're launching a new generation of activists.

Could You Talk To A Caveman? Scientists Say It's Possible

Researchers at the University of Reading are speculating that today's languages share a common root dating as far back as the last Ice Age. Words like "mother," "man" and "ashes" are categorized as "ultraconserved," meaning they are survivors of a lost language from which many modern tongues are descended.

Big Ag Agrees to Conserve Cropland, But At What Cost?

Farmers say they are ready to compromise with some environmental groups on the issue of conservation compliance. But critics say the price tag for the taxpayer may be too high.

How Can Identical Twins Turn Out So Different?

Scientists used to think that identical twins turned out differently because they were treated differently by friends, teachers or their parents. A study of mice supports the idea that small changes in behavior can lead to larger ones and eventually even resculpt brains in different ways.

No Longer Experimental, Egg Freezing May Appeal To More Women

By age 38, Sarah Elizabeth Richards had spent $50,000 to freeze 70 of her own eggs. Richards, author of Motherhood Rescheduled, wrote in the Wall Street Journal that egg freezing put an end to the sadness she was feeling "at losing my chance" to have a child.