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New Theory of Early Animal Evolution
A New York Medical College developmental biologist whose life’s work has supported the theory of evolution has developed a...
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DNA Has a 521-Year Half-Life
Palaeogeneticists have examined 158 DNA-containing leg bones belonging to three species of extinct giant birds called moa. The bones,...
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Of the Creation Persuasion
From SciAm guest blogger Kyle Hill: The Earth is flat. A full moon leads to more crime. Humans were...
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Scientists Win Nobel Prize for Stem-Cell Work
John B. Gurdon of the U.K. and Shinya Yamanaka of Japan shared this year’s Nobel Prize in Physiology or...
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Human-Neandertal Mating Gets a New Date
A new study suggests that present-day Europeans share more genes with now-extinct Neandertals than do living Africans, at least...
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Dioxin Exposure Has Harmful Effects Across Generations
Washington State University researchers have found that the great-grandchildren of pregnant rats exposed to low doses of dioxin develop...
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Loop the Loop, DNA Style
In certain toy racecar tracks, sneaky players can flip a switch, trapping their opponents’ vehicles in a loop of...
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Stanford Bioengineers Introduce ‘Bi-Fi’ — The Biological Internet
Using an innocuous bacterial virus, bioengineers have created a biological mechanism to send genetic messages from cell to cell....
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In Bolivian Amazon, a Yardstick for Modern Health
There seems to be little that distinguishes the indigenous Tsimane of northern Bolivia from dozens of other native Amazonian...
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3D Scan Tracks Unborn Chimp’s Brain for the First Time
Chimps may be similar to us in many ways but they can’t compete when it comes to brain size....