germ cells, evolution, microbiology, ecology
New Oldest Fossils
Jef Akst | Aug 22, 2011
Fossils discovered in Australian rocks may be the remnants of three and a half billion-year-old microorganisms.
Oldest Known Wood
Jef Akst | Aug 12, 2011
Two newly described fossils suggest that wood is some 10 million years older than previous believed.
Fair Trade at Plant Roots
Kerry Grens | Aug 11, 2011
Plant and fungal symbionts swap more resources with partners that provide a greater return of nutrients.
Yeast Don't Need Oxygen
Bob Grant | Aug 11, 2011
Scientists discover that ancestors of the unicellular fungi can synthesize essential biomolecules with only trace levels of O2.
Why Have Twins?
Jef Akst | Aug 11, 2011
Mothers more likely to have twins have heavier, healthier non-twin babies, possibly explaining why twinning evolved.
Arsenic-Based Life, Open to Critique
Edyta Zielinska | Aug 10, 2011
A researcher is repeating the controversial experiments that suggested a bacterium used arsenic rather than phosphorus in its DNA—with the world watching.
Rewriting E. coli’s Genetic Code
Sabine Louët | Aug 5, 2011
Researchers use directed evolution to create a bacterial strain that substitutes a synthetic base for thymine.
Lab-Grown Sperm
Cristina Luiggi | Aug 4, 2011
Healthy mice are born from germ cell precursors grown in vitro.
Anti-evolution Vandals?
Edyta Zielinska | Aug 1, 2011
Pro-evolution bumper stickers and emblems are being removed from the cars of biologists in Florida.
Seirian Sumner: Wasp Whisperer
Cristina Luiggi | Aug 1, 2011
Research Fellow, Institute of Zoology, London. Age: 37