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Resistance Outlasts Antibiotics
Edyta Zielinska | Dec 5, 2011
Antibiotic resistant bacteria keep their protective genes, even when antibiotics are no longer given.
Cancer’s Escape Routes
Tia Ghose | Nov 30, 2011
Scientists are beginning to discover myriad strategies tumors use to avoid attacks by anti-cancer drugs.
Evolutionary Pioneer Dies at 73
Edyta Zielinska | Nov 28, 2011
Lynn Margulis, an innovative thinker who proposed symbiosis as a major mechanism for speciation, passed away last week.
Whales Saved From Highway Project
Bob Grant | Nov 21, 2011
A team of paleontologists is racing to recover dozens of fossilized whale skeletons from the site of a road building excavation in northern Chile.
Battle of the Sexes
Hannah Waters | Nov 17, 2011
Traits that help one sex but hurt the other are not sufficient for maintaining genetic variation.
Ruth Williams | Nov 13, 2011
Scientists track changes in bacterial genomes during a hospital outbreak to discover potential pathogenesis genes.
A Smoke-Swirl of Birds
Jef Akst | Nov 10, 2011
A video of thousands of birds flying as a single coordinated, amorphous group stirs up questions about how they do it.
Pioneers Make More Babies
Jef Akst | Nov 7, 2011
Women of the French families that colonized Canada in the 17th and 18th centuries had more children and grandchildren than late comers to the region.
Earliest Modern Europeans Described
Jef Akst | Nov 3, 2011
A fossilized jaw bone and teeth from Western Europe are recognized as the oldest modern human fossils recovered in the region.
Edyta Zielinska | Oct 27, 2011
Bacteria age, but as a lineage, can live forever.