In 1868, the naturalist Charles Darwin wrote that differences in plumage coloration between male and female birds of the same species were likely the result of sexual selection: Female birds—he used the peahen and peacock ...
Evolution
Oct 11, 2022
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A bay-breasted warbler weighs about the same as four pennies, but twice a year makes an extraordinary journey. The tiny songbird flies nearly 4,000 miles (6,437 kilometers) between Canada's spruce forests and its wintering ...
Plants & Animals
Sep 15, 2022
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Africa's migratory birds are threatened by changing weather patterns in the center and east of the continent that have depleted natural water systems and caused a devastating drought.
Plants & Animals
Aug 20, 2022
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Britain is suffering its worst drought since the 1970s, with dry weather expected until October. Many parks and lawns are now more straw than grass, but some trees and other plants have responded in a more surprising way: ...
Environment
Aug 15, 2022
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Over 1 million dams and culverts (tunnels that encircle rivers passing under roads) block the movements of fish and other wildlife in Europe. Scientists estimate that less than 1% of catchments in the U.K. are free of obstruction. ...
Plants & Animals
Aug 3, 2022
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The largest fish in the ocean is a globe-trotter that can occasionally be found basking in the coastal waters of the Panamanian Pacific. However, little more is known about the habits of the whale shark (Rhincodon typus) ...
Ecology
Jul 2, 2022
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Grassland songbirds have been steadily decreasing for decades in Canada. In addition to having to endure strenuous migration every year, they are confronted with the symphonies of oil extraction and drilling once they finally ...
Plants & Animals
Jun 15, 2022
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Research led by the University of Southampton has revealed that an abrupt change in climate conditions in the North Atlantic around 800 years ago played a role in a decline in Atlantic salmon populations returning to rivers. ...
Plants & Animals
Jun 8, 2022
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Researchers from The University of Queensland have helped design an app to protect birds at risk of extinction across the world by breaking down language barriers between scientists.
Plants & Animals
Apr 21, 2022
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American white pelicans who pause their migration at Strawberry Reservoir are filling their bellies with native species like Utah sucker for the most part, leaving cutthroat trout to the human anglers, according to new research ...
Ecology
Mar 8, 2022
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