Actualités


Blossoming Bisexual: World's 1st Flower Had Male and Female Parts

04 Апр

When the world's first flower sprouted about 140 million years ago, it was bisexual, possessing both male and female reproductive parts, according to the researchers who virtually reconstructed the blossom in a new study.  The discovery of the dinosaur-age posy sheds light on the evolution and diversification of flowering plants, or angiosperms, the largest group of plants on Earth, the re

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How Buttercups Get Their Yellow Gloss

04 Апр

If you've ever played the childhood game of holding a buttercup under your chin to see if you like butter, you might have wondered why the cheery little flowers are the only type that provide the requisite reflection on your skin. A new study reveals the answer: Buttercups are unique among flowers. Their bright-yellow gloss results from a one-of-a-kind combination of pigments and anatomical str

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See the World's Driest Desert Covered in Wildflowers

03 Апр

An unexpected rain has caused the world"s driest nonpolar desert to burst into bloom. Chile"s Atacama Desert typically gets a mere 0.6 inches (15 millimeters) of rain every year. But unusual rains that fell during the winter in northern Chile led the barren landscape to blossom in August. Typically, the Atacama becomes an endless field of wildflowers once every five to seven years due to rai

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