Search Results for: Angiosperm
49 results
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PaleontologyInsect bites in plant fossils reveal leaves could fold shut millions of years ago
The 252-million-year-old fossil leaves have symmetrical holes, which suggest an insect bit through the leaves when they were folded.
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PaleontologyThe dinosaur-killing asteroid impact radically altered Earth’s tropical forests
The asteroid impact fundamentally reset the nature of Earth’s tropical rainforests, decreasing diversity at first and making them permanently darker.
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PlantsTiny fossils set record for oldest flowerlike pollen
Oldest flowerlike pollen might have come from an ancient relative of today’s flowering plants.
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EarthWarm spell spurred tropical biodiversity
The number of plant species exploded in South America as atmospheric carbon dioxide, and temperatures, rose abruptly about 56 million years ago.
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Ecosystems
Flowering plants welcome other life
When angiosperms diversified 100 million years ago, they opened new niches for ants, plants and frogs.
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Plants
Floral Shocker: Blooms shake roots of flowering-plant family
A tiny aquatic plant, once thought to be related to grasses, raises new questions about the evolution of the earliest flowering plants.
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Building Beauty
Flowers are essentially variations on a single theme: Come hither. Instead of lipstick and lace, flowers advertise with vivid petals and ultraviolet stripes. Some plants offer a legitimate exchange of goods — visitors are rewarded with protein-rich pollen or sweet nectar. Other flowers deceive, mimicking the scent, color and feel of a rotting carcass to […]
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Humans
Summer Reading
The staff of Science News presents wide-ranging recommendations of books for readers to pack for their summer vacations.
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Plants
A Frond Fared Well: Genes hint that ferns proliferated in shade of flowering plants
Analyses of genetic material from a multitude of fern species suggest that much of that plant group branched out millions of years after flowering plants first appeared, a notion that contradicts many scientists' views of plant evolution.
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Tree pollen exploits surrogate mothers
An Algerian cypress releases pollen that can develop without fertilization, using another tree species' female organs instead of a mate's.
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