A fossil in South Africa is evidence that therapsids, one of our ancestors, were laying eggs 252 million years ago. Julien BenoitVincent FernandezJennifer Botha You can’t make a mammal-ette without ...

Discovery of a Lystrosaurus embryo inside an egg proves early mammal relatives laid eggs and survived mass extinction through ...

More than 250 music insiders and six New York Times critics weighed in on who defines the new American songbook. Here are the artists they chose.

Mass extinction events are defined by a 75% loss in total species. These events can take tens of thousands to several million years. Experts are alarmed at today’s “unprecedented” population abundance ...

The little skeleton was curled so tightly it looked as if it had never really entered the world. For years, that mattered ...

Another birthday bash has been added to the slate of America 250 Celebrations - and this party promises to be out of this ...

A remarkable new discovery is shedding light on one of the greatest survival stories in Earth's history, and answering a decades-old scientific mystery. Lystrosaurus, a hardy, plant-eating mammal ...

Ryan Day's press conferences can go one of two ways, depending on his mood. If he is locked in and serious, you don't get much. If he is in a good mood, he will open up a little bit and get the room ...

John Korir obliterated the course record, and he and Sharon Lokedi both repeated their winning performances. Marcel Hug won ...

On most Sunday nights, on the top floor of a parking garage in Arlington, Virginia, a few dozen men gather at an ice rink to ...

Celebrate D.C. Emancipation Day with music and a parade, attend a screening at Filmfest DC, or find the perfect blooms at a ...

Scientists reveal how Earth flipped into an ice age 350 million years ago, uncovering a major shift in the planet’s ancient ...