06 February 2007 00:00
Does Evolution Select For Faster Evolvers
"We have developed the first exact solution of a mathematical model of evolution that accounts for this cross-species genetic exchange," said Michael Deem, the John W. Cox Professor in Biochemical and Genetic Engineering and professor of physics and astro
ANTHROPOLOGY:No Last Word on Language Origins -- Holden 282 (5393): 1455 -- Science
Nothing is more human than speech.Human beings were anatomically ready to speak more than 150,000 years ago--but clear evidence that they were doing so does not appear for 100,000 years afterward
Avian Flight
The earliest known bird is Archaeopteryx. The most diverse group of flyers ever to evolve are the birds (the clade Aves). Birds show a marvelous diversity not only of species but of flight adaptations. Compare the hummingbird with the albatross, and you'l
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