Shortening tails gave early birds a leg up

A radical shortening of their bony tails over 100 million years ago enabled the earliest birds to develop versatile legs that gave them an evolutionary edge, a new study shows.

Ancient Pa. dwelling still divides archaeologists

A fluke rainstorm at an ancient rock shelter in western Pennsylvania has brought a renowned archaeologist back to the site of where a furious debate was launched in 1973 over when the first humans came to the Americas.

Upsalite: Scientists make 'impossible material'... by accident

Researchers in Uppsala, Sweden accidentally left a reaction running over the weekend and ended up resolving a century-old chemistry problem. Their work has led to the development of a new material, dubbed Upsalite, with remarkable ...

Brazil demands clarifications on NSA surveillance

Brazil demanded answers Tuesday from the U.S. about National Security Agency spying in the country and warned that trust between the two nations would be damaged if U.S. explanations about the program were not satisfactory.

Even for cows, less can be more

With little research on how nutrition affects reproductive performance in dairy cows, it is generally believed that a cow needs a higher energy intake before calving. Research by University of Illinois scientists challenges ...

Space station boosting biological research in orbit

Studying the science of biology in microgravity opens a world of possibilities! Research ranges from plant growth to cell growth and from bacterial virulence to strength in human bones. The scope of biology research provides ...

ORNL finding goes beyond surface of oxide films

(Phys.org) —Better batteries, catalysts, electronic information storage and processing devices are among potential benefits of an unexpected discovery made by Oak Ridge National Laboratory scientists using samples isolated ...

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