Life
We summarize the week's scientific breakthroughs every Thursday.
- Animals
It’s not just his croak
Male tree frogs with redder vocal sacs prove more popular with females, even at night.
- Animals
Dogs show a fetching communication savvy
In a sign of understanding that one object can be used to represent another, border collies fetch toys after being shown replicas or, in some cases, photos of those toys.
- Ecosystems
U.S. bird populations in decline, report says
Secretary of the Interior Ken Salazar releases a review of U.S. bird populations.
- Plants
Plants reveal pollen-luring secrets
Scientists finally pin down the proteins one plant uses to lure pollen tubes to its plant ovaries.
- Paleontology
Dino feathers may have had earlier origin than thought
Researchers report that newly described dinosaur fossils suggest an ancient origin of feathers.
- Ecosystems
Too much intermingling puts native trout in trouble
Even a small amount of hybridizing may cause problems for the native westslope cutthroat trout.
- Earth
North America’s smallest dino predator
A new fossil analysis uncovers what may have been North America’s tiniest dino predator.
- 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.
- 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.
