Foundations
Cave Dwellers, 1938
Cave Dwellers, 1938
Anna Azvolinsky | Mar 1, 2016
Renowned sleep researcher Nathaniel Kleitman and a colleague spent a month underground to test the body’s natural rhythms.
Mendel in the Hot Seat, 1902
Mendel in the Hot Seat, 1902
Karen Zusi | Feb 1, 2016
Raphael Weldon’s critiques of Mendelian principles were 100 years ahead of his time.
A Century of Science on Stamps
A Century of Science on Stamps
Karen Zusi | Jan 1, 2016
Countries have used postage stamps to commemorate scientific achievements—sometimes with erroneous zeal—since the early 1900s.
The Cyclopes of Idaho, 1950s
The Cyclopes of Idaho, 1950s
Karen Zusi | Dec 1, 2015
A rash of deformed lambs eventually led to the creation of a cancer-fighting agent.
The First Neuron Drawings, 1870s
The First Neuron Drawings, 1870s
Amanda B. Keener | Oct 1, 2015
Camillo Golgi’s black reaction revealed, for the first time, the fine structures of intact neurons, which he captured with ink and paper.
Whaling Specimens, 1930s
Whaling Specimens, 1930s
Amanda B. Keener | Sep 1, 2015
Fetal specimens collected by commercial whalers offer insights into how whales may have evolved their specialized hearing organs.
A Case of Sexual Ambiguity, 1865
A Case of Sexual Ambiguity, 1865
Amanda B. Keener | Aug 1, 2015
This year marks the 150th anniversary of an autopsy report describing the first known case of a sexual development disorder.
Half Mile Down, 1934
Half Mile Down, 1934
Jenny Rood | Jul 1, 2015
In his bathysphere, William Beebe plumbed the ocean to record-setting depths.
Orb-iters
Orb-iters
The Scientist Staff | Jul 1, 2015
See how William Beebe and Otis Barton descended to the ocean's depths in an early submersible designed to allow access to the mysterious lifeforms inhabiting the deep sea.
Water Fleas, 1755
Water Fleas, 1755
Jenny Rood | Jun 1, 2015
A German naturalist trains a keen eye and a microscope on a tiny crustacean to unlock its secrets.