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Studies of ancient climates suggest Earth is now on a fast track to global warming
Human activities are releasing greenhouse gases more than 30 times faster than the rate of emissions that triggered a period of extreme global warming in the Earth's past, according to an expert on ancient climates. view more (2006-02-17)
Study identifies energy efficiency as reason for evolution of upright walking
A new study provides support for the hypothesis that walking on two legs, or bipedalism, evolved because it used less energy than quadrupedal knucklewalking. view more (2007-07-17)
New findings show a slow recovery from extreme global warming episode 55 million years ago
Most of the excess carbon dioxide pouring into the atmosphere from the burning of fossil fuels will ultimately be absorbed by the oceans, but it will take about 100,000 years. That is how long it took for ocean chemistry to recover from a massive input of carbon dioxide 55 million years ago, according to a study published this week in the journal... view more... (2005-06-10)
Fossils from ancient sea monster found in Montana
A fossil-hunting trip to celebrate a son's homecoming resulted in the recent discovery of an ancient sea monster in central Montana. view more (2006-11-06)
'Nymph of the sea' reveals remarkable brood
The scientists discovered the mother complete with her brood of some 20 eggs and 2 possible juveniles inside, together with other details of her soft part anatomy including legs and eyes. view more (2006-11-27)
Evolution study tightens human-chimp connection
Scientists at the Georgia Institute of Technology have found genetic evidence that seems to support a controversial hypothesis that humans and chimpanzees may be more closely related to each other than chimps are to the other two species of great apes - gorillas and orangutans. view more (2006-01-24)
Modern humans, not Neandertals, may be evolution's 'odd man out'
Could it be that in the great evolutionary "family tree," it is we Modern Humans, not the brow-ridged, large-nosed Neandertals, who are the odd uncle out? view more (2006-09-11)
Anthropologist challenges species identification of ancient child skeleton found in Ethiopia
Pitt's Jeffrey Schwartz, who with colleague Ian Tattersall compiled the entire human fossil record, says specimen is not from Ethiopia and classification is premature. view more (2006-10-03)
Fossil is missing link in elephant lineage
A pig-sized, tusked creature that roamed the earth some 27 million years ago represents a missing link between the oldest known relatives of elephants and the more recent group from which modern elephants descended, an international team that includes University of Michigan paleontologist William J. Sanders has found. view more (2006-11-02)
Cornell ecologist's study finds that producing ethanol and biodiesel from corn and other crops is not worth the energy
Turning plants such as corn, soybeans and sunflowers into fuel uses much more energy than the resulting ethanol or biodiesel generates, according to a new Cornell University and University of California-Berkeley study. view more (2005-07-06)
Inside rocks, implications for finding life on Mars
If a future space mission to Mars brings rocks back to Earth, Schopf said the techniques he has used, called confocal laser scanning microscopy and Raman spectroscopy, could enable scientists to look at microscopic fossils inside the rocks to search for signs of life, such as organic cell walls. view more (2006-02-01)
Living fossil roams the seas
Fossil' fish coelacanth, first dragged up along the coast of South Africa in 1938, having been considered extinct for 65 million years. Because of its close resemblance to land animals, it has attracted attention to the subject of a 'missing link' between tetrapods and humans. view more (2005-07-13)
New process makes diesel fuel and industrial chemicals from simple sugar
The soaring prices of oil and natural gas have sparked a race to make transportation fuels from plant matter instead of petroleum. Both biodiesel and gasoline containing ethanol are starting to make an impact on the market. view more (2006-06-30)
390-million-year-old scorpion fossil -- biggest bug known
The gigantic fossil claw of an 390 million-year-old sea scorpion, recently found in Germany, shows that ancient arthropods - spiders, insects, crabs and the like - were surprisingly larger than their modern-day counterparts. view more (2007-11-26)
Oceans may soon be more corrosive than when the dinosaurs died
Increased carbon dioxide emissions are rapidly making the world's oceans more acidic and, if unabated, could cause a mass extinction of marine life similar to one that occurred 65 million years ago when the dinosaurs disappeared. view more (2006-02-21)
US fires release large amounts of carbon dioxide
Large-scale fires in a western or southeastern state can pump as much carbon dioxide into the atmosphere in a few weeks as the state's entire motor vehicle traffic does in a year. view more (2007-11-01)
Acid Rain Has a Disproportionate Impact on Coastal Waters
The release of sulfur and nitrogen into the atmosphere by power plants and agricultural activities plays a minor role in making the ocean more acidic on a global scale, but the impact is greatly amplified in the shallower waters of the coastal ocean, according to new research by atmospheric and marine chemists. view more (2007-09-10)
New mammal discovery made by Case paleontologist
Fossils of a new hoofed mammal that resembles a cross between a dog and a hare which once roamed the Andes Mountains in southern Bolivia around 13 million years ago was discovered by Darin A. Croft, assistant professor of anatomy at the Case Western Reserve University School of Medicine and a research associate at the Cleveland Museum of Natural... view more... (2006-08-10)
Smallest Triceratops skull described
With its big, hockey puck-sized eyes, shortened face and nubby horns, it was probably as cute as a button-at least to its mother, a three-horned dinosaur called Triceratops that could weigh as much as 10 tons and had one of the largest skulls of any land animal on the planet. view more (2006-03-07)
Scientists narrow the time limits for the human and chimpanzee split
A team of researchers has proposed new limits on the time when the most recent common ancestor of humans and their closest ape relatives - the chimpanzees - lived. view more (2005-12-20)
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