history
19th Century Experiments Explained How Trees Lift Water
19th Century Experiments Explained How Trees Lift Water
Ben Andrew Henry | Feb 1, 2017
A maple branch and shattered equipment led to the cohesion-tension theory, the counterintuitive claim that water’s movement against gravity involves no action by trees.
Earliest Deuterostome Fossils Described
Earliest Deuterostome Fossils Described
Kerry Grens | Jan 31, 2017
These millimeter-size sea creatures lived 540 million years ago.
Reconstructing the Effects of the Fur Trade in the Brazilian Amazon
Reconstructing the Effects of the Fur Trade in the Brazilian Amazon
Catherine Offord | Jan 1, 2017
Researchers use a century of trade records to uncover differences in the resilience of terrestrial and aquatic species.
The Sled Dogs that Stopped an Outbreak
The Sled Dogs that Stopped an Outbreak
Ben Andrew Henry | Jan 1, 2017
Balto, Togo, and other huskies famously delivered life-saving serum to a remote Alaskan town in 1925—but newspapers didn’t tell the whole story. 
Early 3-D Image Analysis Revealed Surprising Symmetry in the Nuclear Pore
Early 3-D Image Analysis Revealed Surprising Symmetry in the Nuclear Pore
Ben Andrew Henry | Dec 1, 2016
In 1992, advancements in microscopy zoomed in on the precise architecture of the complex, including unforeseen structural repetition in two halves of the ring.
Missing Link in Malaria Evolution Discovered in Historical Specimens
Missing Link in Malaria Evolution Discovered in Historical Specimens
Ben Andrew Henry | Dec 1, 2016
A family’s collection of antique microscope slides became a trove of genetic information about the eradicated European malaria pathogen.
Two-Photon Microscopy’s Historic Influence on Neuroscience
Two-Photon Microscopy’s Historic Influence on Neuroscience
Alison F. Takemura | Nov 1, 2016
In the 1990s, the development of this gentler and more precise microscopy method improved scientists’ ability to probe neurons’ activity and anatomy.
Science History: The First Transgenic <em>Arabidopsis</em>
Science History: The First Transgenic Arabidopsis
Kerry Grens | Oct 1, 2016
Tweaks to a transformation protocol in 1986 cemented the little plant's mighty role in plant genetics research.
Thirty Years of Lab Safety
Thirty Years of Lab Safety
Michal Barski | Oct 1, 2016
From mouth pipetting to automated liquid handling, life-science labs have gotten much safer over the past three decades.
ESP on Trial
ESP on Trial
Catherine Offord | Sep 1, 2016
In the 1930s, parapsychologist Joseph Banks Rhine aimed to use scientific methods to confirm the existence of extrasensory perception, but faced criticisms of dubious analyses and irreproducible results.