6,745 results
- Life
Complex life hit freshwater early
Tiny fossils in Scottish rock show that cells with nuclei had spread beyond the seas by a billion years ago.
-
New Takes on Historic Quakes
Two centuries on, scientists revisit the magnitudes of New Madrid’s biggest rumbles.
- Paleontology
Ancient DNA suggests polar bears evolved recently
A study of a rare Norwegian fossil narrows down when polar bears evolved and finds they are closely related to modern-day brown bears in Alaska.
-
2011 AAAS meeting: Science without borders
A round-up of Science News coverage of the the American Association for the Advancement of Science meeting held February 17–21, 2011 in Washington, D.C.
- Animals
Doing the wet-dog wiggle
Hairy animals have evolved to shed water quickly by shaking at the optimal speed for their size.
- Agriculture
A taste of the chocolate genome
Competing teams have announced the impending completion of the cacao DNA sequence.
-
- Health & Medicine
Digging into the roots of lupus
Two new studies implicate common white blood cells called neutrophils in this autoimmune disease.
-
Japan crisis may have little effect on U.S. energy policy
Whatever the ultimate repercussions of the Fukushima Daiichi nuclear plant accident in Japan (see Page 6), the crisis raises questions over the role nuclear power should play as an energy source. Michael Levi, head of the energy security and climate change program at the Council on Foreign Relations in New York City, spoke to reporters […]
- Life
Running a cancer roadblock
A new study shows how cells escaping from a breast tumor overcome a piece of RNA that usually stops them.
-
On Thin Ice: The Changing World of the Polar Bear by Richard Ellis
The natural history of polar bears entwines with human history in this science writer’s ode to the world’s largest land carnivore. ON THIN ICE: THE CHANGING WORLD OF THE POLAR BEAR BY RICHARD ELLIS Alfred A. Knopf, 2009, 400 p., $28.95.
- Humans
Climate researcher speaks out
BLOG: Michael Mann says scientists have lost control of the public message about climate change, Alexandra Witze reports from the Council for the Advancement of Science Writing meeting.
