News tagged with winter

Chillier winters, smaller beaks

Although Charles Darwin lived and worked in the 19th century, modern evolutionary biologists are far from exhausting all avenues of inquiry regarding birds and evolution. For example, in the 1990s, researchers such as Russ ...

dateJul 13, 2017 in Evolution
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Image: SOHO's summer solstice sun

Residents of Earth's northern hemisphere enjoyed the greatest number of daylight hours in a single day all year on 21 June 2017. This summer solstice occurs when the tilt of Earth's axis is most inclined towards the sun, ...

dateJun 26, 2017 in Space Exploration
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Birds' feathers reveal their winter diet

Influences outside the breeding season can matter a lot for the population health of migratory birds, but it's tough to track what happens once species scatter across South America for the winter months. A study from The ...

dateJun 21, 2017 in Ecology
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US beekeepers lost 33 percent of bees in 2016-17

Beekeepers across the United States lost 33 percent of their honey bee colonies during the year spanning April 2016 to April 2017, according to the latest preliminary results of an annual nationwide survey. Rates of both ...

dateMay 25, 2017 in Ecology
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