Tag: "fossil" at biology news
Agonized death throes probable cause of open-mouthed, head-back pose of many dino fossils
...nation gives us clues to interpreting a great many fossil
horizons we didn't understand before and tells us ...e. By studying a large number of fully articulated fossil
skeletons, he and Faux were able to distinguish animals that underwent post-mortem water transport, ...
Nitrate in Lake Superior: On the rise
...nt of agricultural fertilizers and is generated by fossil
fuel combustion. Nitrate in Lake Superior has incr...ther post-World War II increases in fertilizer and fossil
fuels, which would tend to increase levels faster, or the effects of the Clean Air Act of 1972, whic...
Soils offer new hope as carbon sink
...eenhouse gas on a global scale than the burning of fossil
fuels. "So it is not surprising there is so much interest in a technology to create clean energy that also locks up carbon in the soil for the long term and lifts agricultural production," he said. The trials at Wollongbar have focused on the benef...
West African Ocean sediment core links monsoons to global climate evolution
... climate cycles. From chemical data locked into fossil
plankton shells, the researchers documented how the strength of ancient monsoons is directly tied to two factors: the Northern Hemispheres climate shifts due to the expansion and contraction of the European and North American continental ice sheets, ...
Lessons from the orangutans: Upright walking may have begun in the trees
...es. But, this distinction is complicated by recent fossil
evidence that some early hominins, including Lucy ( Australopithecus afarensis ), lived in woodland environments, while even earlier forms such as Millennium Man ( Orrorin ) appear to have lived in the forest canopy and moved on two legs. "Our find...
New genetic data overturn long-held theory of limb development
...more primitive vertebrates such as sharks and many fossil
fish. This sturgeon-type fish is farm raised for c...elopment on two fronts: the direct evidence of the fossil
record and the morphology, and its relationship with specific genetic mechanisms. What they needed, ...
Revelle family endows UC San Diego chair honoring Roger Revelle
...reasing atmospheric carbon dioxide from the use of fossil
fuels. He recruited a young scientist, Charles Dav...sory Committee, Revelle stated that the burning of fossil
fuels by man is measurably increasing the atmospheric carbon dioxide, and that this increase would a...
Study warns deep-sea mining may pose serious threat to fragile marine ecosystems
...assive sulphide mining sites. "Over 250 active and fossil
deposits have already been found. And the company operating in Papua New Guinea has already staked claims off the coast of Tonga and Fiji," he says. "If this first attempt at mining proves successful, its like letting the genie out of the bottle."...
Jaap Sinninghe Damst awarded the Vernadsky Medal for innovative use of biomarkers
...its origin. These biomarkers are a kind of organic fossil
and unlike normal fossils which only show higher organisms, like dinosaurs, these organic fossils show chemical remains of microbial life like algae, bacteria and archaea. "This really opens new perspectives on all kinds of things. The nice thing abo...
Investigating coral reefs to help understand past and future climate change
...nges in coral reef growth and composition. Thus, a fossil
coral reef drill sample gives accurate information about the sea level, salinity and temperature at different times in history. Interpreting this information provides a way to reconstruct past climate change. Using coral reefs as climatic archives...
ACS News Service Weekly PressPac -- May 9, 2007
...ournal. Nitrogen oxides, emitted in the burning of fossil
fuels, combine with other air pollutants termed volatile organic compounds to form smog. In the report, D. J. Donaldson and colleagues point out that air pollution researchers have been focusing on urban surface films, often termed "window grime,"...
Brain, size and gender surprises in latest fossil tying humans, apes and monkeys
DURHAM, N.C. -- A surprisingly complete fossil
skull of an ancient relative of humans, apes and m...in these skulls, and in many other Aegyptopithecus fossil
pieces collected at the Egyptian site over four decades, suggest that this primate was already branc...
NIST building software offers green product advice
...es: global warming, acidification, eutrophication, fossil
fuel depletion, indoor air quality, habitat alteration, human health, ecological toxicity, ozone depletion, smog, criteria air pollutants and water intake. The new consensus weight option, developed by a panel of building product manufacturers, green...
New petroleum-degrading bacteria found at Rancho La Brea Tar Pits in Los Angeles
..., Los Angeles. Rancho La Brea, one of the world's fossil
localities, is recognized for having the largest and most diverse assemblage of extinct ice age plants and animals in the world. "The living bacteria contained in the asphalt are most likely the progeny of soil microorganisms that were trapped in ...
Anthropologist given one of nation's top scientific honors
...constructed the skeleton of "Lucy" a near-complete fossil
of a human ancestor that walked upright more than three million years ago. He also has been active in paleodemography and human origins modeling, including the theory that upright walking was closely tied to monogamous mating in early hominids. Cur...
Carnegie Mellon's David Sholl identifies new materials
... make hydrogen more stable and cost-efficient than fossil
fuels. Increased concern about global warming and a need to conserve natural fuel sources prompted Carnegie Mellon researchers to find new, lightweight, low-cost hydrogen-storage materials. "We are currently studying the use of metal hydrides, such...
Understanding the global carbon budget -- Woods Hole Research Center expert provides insights
...ring out where all the carbon emitted from burning fossil
fuels ends up is surprisingly difficult, especially when one recognizes that there are only three places it can go: the atmosphere, the oceans and land (plants and soil). The long-time effort to understand this distribution of carbon is giving way to...
An ancient bathtub ring of mammoth fossils
...ues have identified 62 sites of known or suspected fossil
finds and have verified and collected additional material and information at eight of them, including two so far this spring. They presented three seasons worth of fieldwork Saturday during the Geological Society of America regional meeting at Wester...
How to look at dinosaur tracks
...te that great care should be taken when describing fossil
footprints that have been exposed to subaerial erosion, because the shape, dimensions, and general appearance of the footprint become seriously altered by erosion. Geologists also must account for whether the step was taken on a sloped surface or o...
Academy paleontologist and Alaska artist in line for natural history awards
...iscovered the 375-million-year-old Canadian Arctic fossil
that is an evolutionary link between fish and limbed animals, will receive the Hayden Memorial Geological Award for excellence in scientific discovery and research. The Academy's Associate Curator of Vertebrate Biology, Daeschler joined Philadelphia'...
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