Life
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Ecosystems
U.S. bird populations in decline, report says
Secretary of the Interior Ken Salazar releases a review of U.S. bird populations.
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Plants
Plants reveal pollen-luring secrets
Scientists finally pin down the proteins one plant uses to lure pollen tubes to its plant ovaries.
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Paleontology
Dino feathers may have had earlier origin than thought
Researchers report that newly described dinosaur fossils suggest an ancient origin of feathers.
By Sid Perkins -
Ecosystems
Too much intermingling puts native trout in trouble
Even a small amount of hybridizing may cause problems for the native westslope cutthroat trout.
By Susan Milius -
Earth
North America’s smallest dino predator
A new fossil analysis uncovers what may have been North America’s tiniest dino predator.
By Sid Perkins -
Health & Medicine
MicroRNAs provide telltale signature of organ rejection
Levels of microRNAs in the blood and tissue distinguish rejected transplants from healthy tissue.
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Life
Vive la cycles
Researchers have identified a missing gear in the clock that helps plants tell night from day.
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Tech
Whiz Kids: The Movie
New independent film showcases the arduous path by which extraodinary high school researchers reach the Science Talent Search competition in Washington, D.C.
By Janet Raloff -
Animals
Public tantrums defeat monkey moms too
Rhesus macaque moms are more likely to give in to screaming babies when bystanders are watching and reacting
By Susan Milius -
Life
Aphids support symbionts with borrowed DNA
Aphids borrowed at least two genes from bacterial buddies, and those genes now support another bacterium that lives in the insects.