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Biology12264 articles archived since 1845

AIDS Today--And Tomorrow

On World AIDS Day, we look at the outcome of PEPFAR, President Bush's international AIDS program, the aftermath of a controversial HIV-prevention trial, and the future of microbicides--women-controlled AIDS prevention...

December 1, 2008

Solar-Powered Sea Slug

A sea slug can carry on photosynthesis for months at a time by eating algae and saving the tiny organelles that the single-celled organism uses to convert sunlight to energy. Cynthia Graber reports...

December 1, 2008

Sperm Supply Tied to Competition

Studies in multiple species show that males may adjust sperm output when faced with romantic rivals, and females may seek more partners if males skimp. Karen Hopkin reports

November 28, 2008

Viruses against Disease; Going Batty for Bats

Scientific American editor in chief, John Rennie, talks about the contents of the December issue, including bat evolution and how magicians are helping neuroscience. And Boro Dropulic of Lentigen talks about converting viruses into disease fighters...

November 26, 2008 — Steve Mirsky

Galapagos Invaders Actually Native Species

Fossil remains show that some plant species believed to have invaded the Galapagos islands about 500 years ago are in fact natives. Ecologists can examine fossil remains to determine what really belongs in a given habitat...

November 26, 2008

The Science of Thanksgiving

The answers to all your questions about the big bird: Does turkey make you sleepy? What's the difference between white and dark meat? And, stories about the bird itself

November 25, 2008
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