The rainbow of pigments that animals use for blood illustrates a central truth about evolution
Biologists have demonstrated for the first time that a controversial genetic engineering technology works, with caveats, in mammals
Carbon taxes and nuclear power will be necessary to cut CO2 emissions quickly enough to avert disastrous climate change, they say
Being under water triggers several biological responses that help to prolong breath holds
Please, Magneto, stop blaming evolution for your anger issues
A documentary about Ray Kurzweil's belief that technology could conquer mortality reveals the futurist's emotional life but fails to question his bold claims
Evidence for human interference with Earth's climate continues to accumulate
Astronomers are finding new planets; humanitarians are improving this one
Primates can be dangerous and do harm, especially the human ones
We're an ordinary species on an ordinary planet. Or are we?
BOSTON (March 11, 2009) -- In most discussions of energy and climate, coal figures prominently as one of the villains. Burning coal is responsible for more than a third of all energy-related U.S...
Tuberculosis has never stopped being one of the world's most lethal infections
Scientific American Editor in Chief John Rennie introduces the February 2009 issue
This campus features a roof growing as green as their traditional landscaping
The naturalist would approve of how evolutionary science continues to improve