A new PBS documentary probes the deliberation behind the historic decision.
Modern birds can trace their origins to theropods, a branch of mostly meat-eaters on the dinosaur family tree.
High-resolution video of tiny, bizarre silk structures found across the Amazon known as a silkhenge show the mysterious spider construction as never before.
Declassified spy-satellite photos show that the glaciers near Mount Everest are shrinking more than expected.
Scientists used computer algorithms to "evolve" an organism that's made of 100% frog DNA — but it isn't a frog.
The turbulent lower Congo River, home to hundreds of fish species, is not only Earth's deepest river; it also presents biologists with an intriguing window into evolution.
Scientists have finally pinpointed the location of a long-hidden, 790,000-year-old impact crater, found under a lava field in southern Laos.
From raccoons in sewer grates to hedgehogs in cups, this was a sticky year for some unlucky animals.
Just in time for Christmas, a long-hidden Nativity scene has surfaced after laying concealed for centuries under another painting.
Intriguing clues about Jurassic life were retained in a slab of sandstone that was long known for its preserved dinosaur tracks.
The story behind an oddball sky glow endearingly named "Steve" is revealed in a new documentary. Here's why the light show captivated aurora chasers.
A team of experts embark on a search for the mythical Bigfoot in the forests of Oregon in a new Travel Channel documentary.
A physicist who coined the term "black hole" lost highly sensitive nuclear weapons information when the U.S. had just completed tests of the first hydrogen bomb.
In two daring heists that took place just days apart in Germany, burglars stole precious gems and artifacts from museums in two cities.
Whale experts who visited the scene described the amount of plastic in the animal's body as 'horrific.'
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