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We summarize the week's scientific breakthroughs every Thursday.
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PaleontologyMosasaurs were born at sea, not in safe harbors
Newly discovered fossils of prehistoric aquatic reptiles known as mosasaurs suggest that the creatures gave birth in midocean rather than in near-shore sanctuaries as previously suspected.
By Sid Perkins -
PaleontologyStegosaur tails packed a punch
A mathematical analysis of a fossil stegosaur's bones leaves little doubt that the creature's spike-studded tail was an effective defense against predators.
By Sid Perkins -
PlantsWhy Turn Red?
Why leaves turn red is a stranger question than why they turn yellow.
By Susan Milius -
PaleontologyDear Mummy: Rare fossil reveals common dinosaur’s soft tissue
A mummified dinosaur unearthed in Montana a year ago is giving scientists a rare peek at what the creature's muscles and other soft tissues may have looked like.
By Sid Perkins -
PlantsDrought-tolerant plant mined for survival genes
A drought-resistant South African plant is revealing its genetic secrets.
By John Travis -
AnimalsThat special wax lasts after courtship
Sandpipers' special wax for their wings during the breeding season may have less to do with courting a mate and more to do with sitting on eggs.
By Susan Milius -
PaleontologyTrilobites to Go
Extinct even before dinosaurs existed on Earth but extensively preserved in the fossil record, the eight orders of trilobites (more than 15,000 species) live on via this large, informative Web site, created by zoologist and amateur trilobite enthusiast Sam Gon III. The site provides a gallery of images, a glossary of terms, and much more. […]
By Science News -
EcosystemsState of U.S. Agro-ecosystems
About one-quarter of the United States’ land cover, excluding Alaska, is farmed–some 430 million to 500 million acres. A massive new project has just assessed this and other food-producing environments, such as coastal waters, fresh waters, and rangelands, to tally factors contributing to health. Released on Sept. 24, it indicates that most ecosystems are undergoing […]
By Janet Raloff -
PlantsUnderground Hijinks: Thieving plants hack into biggest fungal network
For the first time, plants have been caught tapping into the most widespread of soil fungi networks and using it to steal food from green plants.
By Susan Milius -
PlantsFungus of the Month
Wisconsin botanist Tom Volk’s smorgasbord of a mycology Web site offers a variety of enticing distractions. You can find morel mushrooms dressed in their holiday best, fungi that ought to be avoided at a Thanksgiving feast, and much more. Be sure to check out the fungus of the month, then browse the archive of fungal […]
By Science News -
AnimalsEat the Kids: Are cannibal fish just freshening the O2?
In beaugregory damselfish, males that snack on some of the eggs supposedly in their care may end up benefiting the rest of the egg clutch by making more oxygen available.
By Susan Milius -
PaleontologyVeggie Bites: Fossil suggests carnivorous dinosaurs begat vegetarian kin
Chinese rocks have yielded fossil remains of a creature that had rodentlike incisors and a hefty overbite, providing the first distinct dental evidence for plant-eating habits among theropod dinosaurs.
By Sid Perkins