Vol. 175 No. #3 Archives

More Stories from the January 31, 2009 issue

  1. Health & Medicine

    Fewer dopamine receptors makes for risky business 

    Brain-scanning study in people sees link between personality, dopamine system.

  2. Humans

    Stone Age tools go south

    Diamond-mining pits have yielded stone artifacts old enough to suggest that hand axe production started 1.6 million years ago in southern Africa, not just in eastern Africa.

  3. Space

    Core of the galaxy in high-res

    New high-resolution mosaic sharpens understanding of Milky Way’s turbulent center.

  4. Space

    This just in: Milky Way as massive as 3 trillion suns

    Heftier size puts our galaxy on par with its neighbor Andromeda, implying a closer collision date. Findings also suggest Milky Way has four spiral arms.

  5. Math

    Mathematicians show how beetles can share a niche

    New equations help solve decades-old puzzle of why one species doesn’t always outcompete another.

  6. Health & Medicine

    Parkinson’s brain surgery works in older patients, too

    A surgery in which two tiny electrodes are placed in the brain improves the quality of life of patients with Parkinson’s disease, including older patients, and seems to have only short-term side effects.

  7. Earth

    Early asteroids unexpectedly crusty

    Two meteorites retrieved from West Antarctica, fragments of an ancient asteroid, contain a type of rock commonly found in Earth’s crust but previously unseen in meteorites.

  8. Health & Medicine

    Early C-sections pose risks

    Babies delivered by elective cesarean section just a week or two before 39 weeks of gestation face increased risk of respiratory and other complications.

  9. Health & Medicine

    Record low for human blood oxygen levels

    Study of Mt. Everest climbers shows some bodies can tolerate low oxygen levels that are toxic to others.

  10. Humans

    Migrants settled New World in tandem

    A genetic investigation of two rare types of mitochondrial DNA in Native Americans suggests that people first entered the Americas in two groups, following separate routes.

  11. Space

    Tuned in to new noise from the cosmos

    Unexplained radio noise may be signals from the early universe.

  12. Health & Medicine

    Sirtuin shown to control gene activity

    A previously overlooked protein called SIRT6 provides some molecular clues to aging.

  13. Life

    Love song of the dengue vector mosquito

    Male and female mosquitoes harmonize pitch when in the mood.

  14. Math

    Calculating the geography of crime

    A mathematician fine-tunes how to blend crime records, geography to track down serial criminals.

  15. Life

    Superloud moth jams bat sonar

    Newly recorded moth could be the first demonstrated case of natural sonar-jamming.

  16. Science Future for January 31, 2009

  17. The Dominant Animal – Human Evolution and the Environment Paul R. Ehrlich and Anne H. Ehrlich

  18. Evolution: A Little History of a Great Idea by Gerard Cheshire

  19. The Stuff of Life: A Graphic Guide to Genetics and DNA by Mark Schultz

  20. Book Review: Charles Darwin: The ‘Beagle’ Letters by Frederick Burkhardt (Editor)

  21. Book Review: Freaks of Nature – What Anomalies Tell Us About Development and Evolution by Mark S. Blumberg

  22. Life

    Darwin’s natural selection redefined the idea of design

  23. Life

    Evolution’s Evolution

    Darwin’s dangerous idea has adapted to modern biology

  24. Life

    Molecular Evolution

    Investigating the genetic books of life reveals new details of 'descent with modification' and the forces driving it.

  25. Life

    Darwin’s Evolution

    Darwin's life and his contribution to science.

  26. SN Special : Darwin turns 200

    This special Web edition of Science News includes expanded versions of articles from the magazine’s print edition plus two additional features, all commemorating the 200th anniversary of the birth of Charles Darwin.

  27. Life

    Darwin Web Special PDFs

  28. Life

    Step-by-step Evolution

    Hard to find, but very fruitful when found, transitional fossils fill in the gaps in the paleontological record.

  29. Letters

  30. Science Past for January 31, 1959

  31. Voyages of Discovery: A Visual Celebration of Ten of the Greatest Natural History Expeditions by Dr. Tony Rice