by
Michael Hagmann
In vino veritas--plenty of secrets have tumbled from lips loosened by wine. Now, wine grapes themselves are spilling some secrets. Scientists have used DNA fingerprinting to decipher the pedigree of...
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Gretchen Vogel
Winners of World Wrestling Federation matches win cash prizes and the admiration of millions of fans. In the undersea world of crabs, the stakes are almost as high: Winners in...
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Bernice Wuethrich
Researchers have found new proof for the theory that natural barriers, such as mountain ranges or dry areas, can cause the birth of new animal and plant species. In a...
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Kathryn S. Brown
ST. LOUIS, MISSOURI--Pamela Soltis calls it botany's answer to the human genome project: a 5-year effort to compile data on the genes and traits of green plants into a vast...
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Dana Mackenzie
Female fruit flies have a busy sex life. They mate once every couple of days, and store male sperm in their reproductive tract for up to a week. For males,...
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Dana Mackenzie
For fish living in the murky waters of the Amazon basin, it might seem hard to find a mate. But several species of knife fish have come up with an...
MADISON, WISCONSIN--Larger bodies may come with larger brains, but size means little when it comes to how much DNA an organism can pack in each cell. Researchers have discovered the...
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Daniel Radov
Snails are not known for being fleet of foot, but they may hold at least one speed record. A report in today's Proceedings of the National Academy of Sciences shows...
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Science News Staff
Today is the birthday of Otto Schindewolf, a German paleontologist born in 1896 who, after examining the fossil record, raised fundamental questions about the theory of evolution. After studying coral...
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Douglas Palmer
Submarine volcanoes in the eastern Pacific were once sun-drenched islands that could have been home to iguanas and other creatures now found only on the Galápagos Islands. The discovery of...
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David Malakoff
A new NASA institute dedicated to studying how life might evolve elsewhere in the universe has finally found a leader. Space agency chief Daniel Goldin today named Nobel Prize-winning biochemist...
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Science News Staff
Forty-six years ago tomorrow, American chemist Stanley Miller gave a jolt to the debate on the origins of life with the publication in Science of his famous paper, "A Production...
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Science News Staff
Today is the birthday of Pierre Teilhard de Chardin, a French paleontologist and philosopher born in 1881. He is known for his provocative writings asserting that humankind is evolving, mentally...
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Elizabeth Culotta
Scientists have unearthed fossils of a small-brained hominid that may be a missing link in the evolutionary tree leading to humans. The find--a 2.5-million-year-old skull--is reported in tomorrow's Science, together...
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Dana Mackenzie
In evolution, it's often said that only the strong survive. But among viruses, biologists have found, natural selection sometimes favors the simply devious. This happens, they report in tomorrow's issue...
DNA studies have caused a tiny marine flatworm to take a large leap down the tree of life. In today's Science, biologists report that the worms, called acoels, may be...
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Dana Mackenzie
For some female birds, the best mate is one with a big vocabulary. At first blush this may seem like an odd way to pick a partner. After all, a...
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Science News Staff
Today is the birthday of Ernst Haeckel, a German zoologist and evolutionist born in 1834 who was a proponent and popularizer of Darwinian evolution. Haeckel studied the one-celled protozoan group...
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Science News Staff
Charles Robert Darwin, the father of evolution and modern genetics, was born on this day in 1809. In 1831, Darwin left for an epic 5-year voyage on the HMS Beagle...
by
Kevin Boyd
You'd never expect a turtle to jump from one branch to another, but a paper in today's Science has them leaping to a new section of the reptile evolutionary tree....
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Menno Schilthuizen
For millions of years, our genomes have been collecting mutations at an alarming rate, researchers write in today's issue of Nature. That begs an intriguing riddle: If our DNA is...
DENVER--For the club-winged manakin, love knows few bounds. In its quest to secure an attractive partner, this small, stocky bird has evolved bigger wing muscles and heavier bones that likely...
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Menno Schilthuizen
Planning to tell your children about the birds and the bees? Think twice. Queen bees are among the most wanton of animals, mating with up to 20 males on their...
by
Menno Schilthuizen
Love may seem like war sometimes, but within the reproductive tract of female fruit flies, a true battle rages: Sperm from different male flies compete head-to-head for a chance to...
by
Gretchen Vogel
Cockroach guts may not sound like a promising hunting ground for clues to the origins of complex cells. But by plumbing the lower digestive tracts of the household pest, scientists...
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Gretchen Vogel
In some species of whales, behaviors learned within families may be altering the course of genetic evolution. In the current Science, Hal Whitehead of Dalhousie University in Halifax, Nova Scotia,...
by
David Kestenbaum
Ants are social animals (try sharing your home with 100,000 in-laws) that live by a complex social code. Many house rules were thought to be flexible: When food is scarce,...
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David Kestenbaum
Most animals rely on two eyes for accurate depth perception. Not the African elephant-nosed fish, which uses electrical pulses to navigate at night. Scientists report in this week's Nature that...
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Gretchen Vogel
To catch prey like mosquitoes and houseflies, dragonflies zoom and hover with extremely efficient, highly responsive wings--a feature many aerospace engineers would like to imitate. But nature had quite a...
by
Meher Antia
Scientists have discovered how stingrays can enjoy their hard-shelled meals of snails and mussels despite the fact that their mouths are made of mushy cartilage: The stingray jaws, it turns...
Deep-sea hydrothermal vents give rise to some of the most bizarre forms of life on the planet, such as blind albino crabs. Now a study in tomorrow's issue of Nature...
by
Govert Schilling
Watch too many episodes of Star Trek and you might think that every solar system hosts some sort of talkative life-form. But a standard argument holds that despite the high...
A small piece of parasitic DNA that appears to have invaded the ancestral vertebrate genome some 450 million years ago may be the key to the incredible diversity of the...
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Dana Mackenzie
Despite scalding-hot water and poisonous hydrogen sulfide, deep-sea clams prosper along fissures in the sea bottom. But they can't do it alone: The clams survive because symbiotic bacteria inside their...
BALTIMORE--Ten million years ago, camels, rhinos, and as many as 20 different species of horses roamed North America. Most of these grazers died out about 6 million years ago, probably...
by
Christie Aschwanden
Medieval herbalists named liverworts after the plant's liver-shaped lobes, whose extracts they believed could cure jaundice and other liver problems. Although the liverwort can't claim fame as a wonder drug...
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Science News Staff
Flashes of lightning in volcanic ash clouds may have helped set the stage for life on Earth. Volcanic plumes were ideal crucibles for sparking stable nitrogen to form reactive compounds...
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Science News Staff
The idea of selfish genes, which stick around even if they do no obvious good for the individual carrying them, has some new evidence to back it up. A particularly...
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Science News Staff
The best spot for evolving radically new marine creatures has seemed to be in shallow waters, where storms and fierce battles for resources wipe out the competition. Now two researchers...
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Science News Staff
HAYAMA, JAPAN--A whale may be just an overgrown hippopotamus with an unusual lifestyle. A new analysis of early whale fossils reported here last week at the International Symposium on the...