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
0
9
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
0
67
The Arctic is no stranger to loss. As the region warms nearly four times faster than the rest of the world, glaciers collapse, wildlife suffers and habitats continue to disappear at a record pace.
Earth Sciences
Aug 30, 2022
30
465
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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32
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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42
Migratory animals include a wide range of species—from tiny insects to the world's largest marine mammals. To achieve their journeys, migrants must walk, swim, or fly, often traversing complex landscapes that requires many ...
Plants & Animals
Aug 10, 2022
0
65
A new study examines how the geographic characteristics of the world's islands influence seasonal variation in the number of bird species. The study determines how seasonal species richness of birds is affected by the size ...
Plants & Animals
Aug 10, 2022
0
83
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
2
5
Swans give up resting time to fight over the best feeding spots, new research shows.
Plants & Animals
Jul 8, 2022
0
82
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
0
13
