Biology
Endangered Tattoos: Volunteers Get Inked to Help Save Species [Slide Show]
Mammals, plants, even fungi are emblazoned on humans who fight for their emblem’s survival
Features1826 articles archived since 1845
The Sciences
Hummingbirds Tracked During U.S. Southwest's "Second Spring" [Slide Show]
Monitoring hummingbird populations during the peak of fall migration in the Chiricahua Mountains helps scientists foresee how these primary pollinators of more than 150 U.S. flowering plant species respond to changes in climate...
Health
Transplanted Nuclei and Cell Differentiation, by Sir John B. Gurdon
The nucleus of a cell from a frog's intestine is transplanted into a frog's egg and gives rise to a normal frog. Such experiments aid the study of how genes are controlled during embryonic development...
The Sciences
Cavity Quantum Electrodynamics
Atoms and photons in small cavities behave completely unlike those in free space. Their quirks illustrate some of the principles of quantum physics and make possible the development of new sensors...
The Sciences
Bringing Schrödinger's Cat to Life
Recent experiments have begun to demonstrate how the weird world of quantum mechanics gives way to the familiarity of everyday experience
The Sciences
Forensic Anthropologist Uses DNA to Solve Real-Life Murder Mysteries in Latin America
Argentinean Mercedes Doretti has successfully identified the remains of hundreds of Central American immigrants who have perished on their dangerous journey north
The Sciences
Commuting: Steven Strogatz Explains One of the Laws of Multiplication [Excerpt]
Steven Strogatz discusses the mathematical difference between IRA contributions and footwear in this excerpt from his new book
Biology
The Connectome Debate: Is Mapping the Mind of a Worm Worth It?
Scientists have mapped a tiny roundworm's entire nervous system. Did it teach them anything about its behavior?
Biology
How We Know That Humans Are Getting Smarter [Excerpt]
In this excerpt from his new book, James R. Flynn explains how he came to understand how our minds have gained in cognitive skills during the 20th century
Space & Physics
Space Shuttles, Lasers and Doomsday Bases: Amazing Payloads for 747s [Slide Show]
Ferrying space shuttles across the country is just one of the very odd jobs given to the workhorse jumbo jet
Environment
In Brazil, Attacking the Forest to Save It
Saving the Amazon rainforest may not look like what we expect
The Sciences
Centenarian Dame Kathleen Ollerenshaw—Conqueror of Magic Squares, Rubik's Cube and Mauna Kea
Born in 1912, mathematician, amateur astronomer, politician, wife and mother Ollerenshaw is still as sharp as ever
Biology
Love Hurts: Brain Chemistry Explains the Pangs of Separation [Excerpt]
Larry Young and Brian Alexander explain how heartache begins in the brain in The Chemistry between Us
Space & Physics
Carl Sagan’s Star Stuff Made Real [Slide Show]
A striking series of animated GIFs shows how we're all made from stars
Biology
Leave It to Beaver: Return of Busy Species Could Restore U.S. Landscape [Excerpt]
Flow, storage and transformation of materials and energy services performed by beavers if returned to a Utah river basin could add up to $411,000 per square mile
