The scientisits tagged multiple individuals with transponders so they could monitor movements without disturbing the birds' normal behavior. The study was conducted over four breeding seasons from 2001 to 2004. During the successful breeding years of 2002 and 2003, the colony was a veritable penguin parade fest, with numerous groups forming in the morning and evening hours.
"Ice skates in Finland were a huge benefit. Our study does not provide conclusive evidence that ice skating originated in that country, but poses strong basis for this hypothesis. In other words, if I were an archaeolosist searching for the oldest ice skates, I would certainly start from Finland," Formenti said.
Gao explained that he and other scientists use an Encephalization Quotient, or EQ, to speculate upon the complexity, or lack thereof, of brain activity in dinosaurs. The EQ is a ration of brain mass to body size. When it's used on existing cratures, it seems to provide and accurate picture of overall brain power within a species. Human EQ has been rated between 6.0 and 8.0.
A person with a naturally short vocal tract may therefore sound more smiley than others at all times. How we perceive such smiles may influence our ehavior. Piotr Winkielman, associate professor of psychology at the University of California at San Diego, unconsc-iously primed some of his study participants with happy faces.
This year, he intends to find out. By carefully tracking where and when the meteor showerpeaks, Jenniskens expects to determin if the Quadrantid stream is relatively young and therefore still narrow as it passes by Jupiter, which will hae a far greater gravitational effect on the comet dust than the relatively puny tug of Earth.
2008-10-27 22:40:34 補充：
Because of this they were quite happy before the ice age to get around in similar temperatures wearing little less than single-layered loosely-draped animal hides. This gave Neanderthals no pressing need to develop complex clothing.
2008-10-27 22:40:46 補充：
But when the peak of the ice age came, it was a shock. Gilligan says climatic evidence shows in the lead up to the glacial maximum there were unusually sudden and massive swings in global temperatures over short periods of time.
2008-10-27 22:41:14 補充：
During her tests, however, only the squirrels with moderately elevated cortisol levels figured out the maze and swiftly escaped the Frisbee.
2008-10-27 22:41:28 補充：
Rodents with too little or too much cortisol had trouble learning. The findings have been accepted for publication in the journal Neurobiology of Learning and Memory.
2008-10-27 22:41:36 補充：
The find will likely reveal key information about piracy in the Caribbean and about the elusive Captain Kidd, according to John Foster, California's state underwater archaeologist, who will participate in the research.
2008-10-27 22:41:40 補充：
"I look forward to meticulous study of the ship, its age, its armament, it's construction," Foster said. "Because there is extensive written documentation, this is an opportunity we rarely have to test historic information against the archaeological record."
2008-10-27 22:53:11 補充：
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