News
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AnimalsSocial pecking order gives roosters something to crow about
Small groups of laboratory roosters keep to the rankings for orderly morning crows.
By Susan Milius -
SpaceBest cosmic ‘cradles of life’ may be elliptical in shape
Giant elliptical galaxies might harbor up to 10,000 times as many Earthlike planets than galaxies like the Milky Way.
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AstronomyKepler telescope identifies new ‘habitable zone’ planet
A new analysis of data from NASA’s Kepler mission has uncovered a planet orbiting a sunlike star that could be Earth’s “cousin.”
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PaleontologySudden heat spikes did in Ice Age’s mammoth mammals
Abrupt warming and excessive hunting by ancient humans were responsible for the disappearance of many large mammals, including woolly mammoths, during Earth’s last glacial period.