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Reporting in Proceedings of the National Academy of Sciences, researchers write of finding fossils of bacteria-like organisms that lived nearly two billion years ago. Paleobiologist Martin Brasier of the University of Oxford explains that these ancient creatures belched hydrogen sulfide, the stench of rotten eggs, after meals--suggesting the early Earth may have been a smelly place.

A lot of people have called basketball player Jason Collins a hero for coming out as the first openly gay male athlete in a major American sport. But the Barbershop guys ask if it's heroism or hype.

The Bangladesh garment factory collapse that killed hundreds made supercheap clothing destined for American stores. Research shows customers will pay more for safely made clothes, but only to a point.

Weekend Edition Sunday host Rachel Martin talks with NPR's Mike Pesca about how the NFL draft is not sports or news; it's entertainment. Plus a curve ball about how the Oklahoma City Thunder get their fans to color-coordinate their clothes.

The Greater sage-grouse is a large bird that makes its living in sagebrush habitats across the western U.S. and Canada. Every year at this time, male sage-grouse perform a striking dance routine each morning at dawn. Jason Robinson, upland game coordinator for the Utah Division of Wildlife Resources, breaks down the dance and describes challenges the birds face in Utah.

Some teens in the Baltimore area have been using "yo" as a gender-neutral pronoun.

The Boston Marathon bombings. The fertilizer plant explosion in West, Texas. The defeat of gun control legislation. We absorbed these past six days in an instantaneous, nonstop, firsthand-but-once-removed way that now defines our communal experiences.

Deep-sea voyager Robert Ballard has discovered everything from 10-foot-tall tube worms to the Titanic on his ocean expeditions around the world. Ballard discusses his underwater finds and how new robotic technology allows scientists to explore the sea from ashore. This interview was originally broadcast on July 3, 2009.

The state of Missouri contended that because alcohol naturally dissipates in the bloodstream, each passing moment means valuable evidence is being lost, and so a warrant is never required for a blood draw. In an 8-to-1 vote, the Supreme Court disagreed.

There's more buzz than usual this year around baseball legend Jackie Robinson, who made his major league debut on April 15, 1947. But commentator Frank Deford says there isn't enough buzz in college athletics to help shape the Robinsons of the future.