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This Day in History
On this day in 1965, President Lyndon B. Johnson signs Medicare, a health insurance program for elderly Americans, into law. At the bill-signing ceremony, which…
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On May 25, 1925, John T. Scopes—the defendant in the famous “Monkey Trial”—was indicted for teaching the theory of evolution in his high school science class.
A new study suggests that melatonin, the hormone that regulates our sleep, may have first evolved hundreds of millions of years ago in tiny ocean creatures.
A team of paleontologists has discovered 17 million-year-old sperm inside tiny shrimp fossils encased in bat guano on the walls of a cave in Queensland, Australia.
Scientists have revived the world’s largest known virus from a piece of Siberian permafrost over 30,000 years old.
Some 252 million years ago, the planet’s largest mass extinction took place in only around 60,000 years — almost instantaneously, relative to geologic time.
A new genetic study links Native Americans from both North and South America to the Clovis culture, which flourished in North America around 13,000 years ago.
In honor of Darwin Day, learn 10 surprising facts about the famed evolutionary biologist Charles Darwin.
New research indicates that tuberculosis bacteria originated with early humans some 70,000 years ago, before they migrated from their African homeland.
Thanks to a nearly complete skeleton found buried in an English quarry, the giant Jurassic-era Leedsichthys has grabbed the title of world’s largest fish.
By analyzing Stone-Age clay cooking vessels, researchers have found the earliest conclusive evidence of humans using spices to flavor their food.
The Mashco-Piro, an indigenous group from the Amazon, is one of the most isolated tribes on Earth.
This week, scientists from the Smithsonian Institution introduced the olinguito —the newest mammal and the first carnivore discovered in the Americas in 35 years.
A new study finds that so-called “ghost glaciers” – layers of non-erosive glacial ice – have protected Greenland’s ancient landscapes for more than 800,000 years.