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No need to thank dinosaur-killing asteroid for mammalian success
03-28-2007 · EurekAlert!A new study published in the March 29 issue of the journal Nature challenges the prominent hypothesis that a mass extinction of dinosaurs 65 million years ago played a major role in the diversification of today’s mammals.
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Keywords: thank, dinosaur-killing, asteroid, mammalian, success, dinosaur, killing
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- Seismic images show dinosaur-killing meteor made bigger splash
01-23-2008 · EurekAlert!
The most detailed 3-D seismic images yet of the Chicxulub impact crater may modify a theory explaining the "KT Extinction Event" that wiped out most life on Earth, including the dinosaurs. According to research appearing in Nature Geosciences, the asteroid landed in deeper water than previously assumed and therefore released about 6.5 times more water vapor into the atmosphere, possibly making it deadlier by altering climate and generating acid rain.
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- Numerous factors affect success of interferon treatment for hepatitis C
07-02-2007 · EurekAlert!
A new study on predicting outcomes of standard treatment for hepatitis C virus (HCV) infection found that a number of factors impacted responses, including the form of the interferon given. However, for some genotypes of the disease, few of these factors play a role.
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- Orangutans' communication resembles a game of 'charades'
08-01-2007 · EurekAlert!
When orangutans use gestures to get their point across, they rely on the same basic strategy that people follow in playing the game of charades. Captive orangutans intentionally modify or repeat hand or other signals selectively based on the success or failure of their first attempt, according to a Aug. 2 study in Current Biology, a publication of Cell Press.
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- NASA keeps eye on ozone layer amid Montreal Protocol's success
09-13-2007 · EurekAlert!
NASA scientists will join researchers from around the world to celebrate the 20th anniversary of the Montreal Protocol, an international treaty designed to reduce the hole in Earth's protective ozone layer. The United Nations Environment Program will host the meeting from Sept. 23-26 in Athens, Greece. NASA scientists study climate change and research the timing of the recovery of the ozone layer.
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- Humans and monkeys share Machiavellian intelligence
10-24-2007 · EurekAlert!
When it comes to their social behavior, people sometimes act like monkeys, or more specifically, like rhesus macaques, a type of monkey that shares with humans strong tendencies for nepotism and political maneuvering, according to research at the University of Chicago. "After humans, rhesus macaques are one of the most successful primate species on our planet; our Machiavellian intelligence may be one of the reasons for our success," said associate professor Dario Maestripieri.
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- Gender roles and not gender bias hold back women scientists
11-19-2007 · EurekAlert!
Traditional roles of women in the home and a negative bias in workplace support result in less career success for women versus men at the same stage of their research careers, determined researchers at the European Molecular Biology Organization in a study appearing in the November 2007 issue of EMBO reports.
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- Herons persist in Chicago wetlands despite exposure to banned chemicals
01-16-2008 · EurekAlert!
Herons nesting in the wetlands of southeast Chicago are still being exposed to chemicals banned in the US in the 1970s, a research team reports. The chemicals do not appear to be affecting the birds’ reproductive success, however.
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- Saturn's Rings Show Evidence Of A Modern-Day Collision
10-13-2006 · ScienceDaily
Scientists with NASA's Cassini mission have spied a new, continuously changing feature that provides circumstantial evidence that a comet or asteroid recently collided with Saturn's innermost ring, the faint D ring.
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- Spot the asteroids!
08-24-2007 · European Space Agency (ESA)
The space-borne infrared observatory AKARI observed asteroid Itokawa last month with its Infrared Camera. The data will be used to refine estimates of sizes of potentially hazardous asteroids in the future.
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- Spectacular dinosaur skull comes back to Alberta
11-07-2006 · EurekAlert!
A "spectacular beast" is coming back to its original stomping grounds and making a new home at the University of Alberta -- a coup that will allow its researchers to study the rare dinosaur skull up close.
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