Image of the Day: Mass Sacrifice
Image of the Day: Mass Sacrifice
At an archaeological site in Peru, researchers have found the remains of hundreds of children and llamas sacrificed in the 15th century.
Image of the Day: Mass Sacrifice
Image of the Day: Mass Sacrifice

At an archaeological site in Peru, researchers have found the remains of hundreds of children and llamas sacrificed in the 15th century.

At an archaeological site in Peru, researchers have found the remains of hundreds of children and llamas sacrificed in the 15th century.

history
Drugs, Developed
Drugs, Developed
Bob Grant | Mar 1, 2019
In an era of instant communication, we must be careful how word of new and untested treatments is shared.
Humans Made Tools Atop the Tibetan Plateau More than 30,000 Years Ago
Humans Made Tools Atop the Tibetan Plateau More than 30,000 Years Ago
Shawna Williams | Mar 1, 2019
A finding pushes back the timeline on humankind’s conquest of one of Earth’s harshest environments, and may provide clues about interactions with their hominin relatives.
How Chromosomes X and Y Got Their Names, 1891
How Chromosomes X and Y Got Their Names, 1891
Joseph Keierleber | Mar 1, 2019
A quirk of nomenclature originates in the study of insect cells.
Book Excerpt from <em>The Environment</em>Book Excerpt from <em>The Environment</em>
Book Excerpt from The Environment
Paul Warde, Libby Robin, Sverker Sörlin | Feb 1, 2019
The authors of a new history of humanity's relationship with the environment detail how climate change fits into the equation.
&ldquo;The Environment&rdquo; Is Only 70 Years Old
“The Environment” Is Only 70 Years Old
Paul Warde, Libby Robin, Sverker Sörlin | Feb 1, 2019
A new book traces the surprisingly short history of the environment as a shared conceptual construct.
Flower Preservation, 1916
Flower Preservation, 1916
Catherine Offord | Feb 1, 2019
James Kirkham Ramsbottom saved Britain’s daffodil industry from a devastating parasite, only to be forgotten.
Painting Dinosaurs, early 20th century
Painting Dinosaurs, early 20th century
Diana Kwon | Jan 1, 2019
Charles R. Knight’s illustrations shaped the public’s view of prehistoric life.
Rethinking Raw Milk, 1918
Rethinking Raw Milk, 1918
Ashley Yeager | Dec 1, 2018
Bacteriologist Alice Evans identified the pathogen that causes undulant fever, leading her to push for the pasteurization of milk.
Cheese Helped Fuel Early Farmers in Europe
Cheese Helped Fuel Early Farmers in Europe
Shawna Williams | Dec 1, 2018
Scientists have found traces of the dairy product in 7,200-year-old pottery in Croatia.