When you hear the name Tyrannosaurus Rex, you probably think of a giant monster, the most fearsome dinosaur ever. With a mouth full of teeth that can easily rip the flesh and crush bones, images of T-Rex can be quite frightening.
It turns out T-Rex’s bite was even more devastating than thought.
Scientists studying T-Rex’s toothy smile focus mostly on the huge and varying size of its teeth, but a Canadian paleontologist has gone beyond that.
After analyzing the teeth of the entire tyrannosaurid family of meat-eating dinosaurs, the University of Alberta’s Miriam Reichel found there is considerable variation in the serrated edges of the teeth. These variations, or keels, not only cut through flesh and bone, but also guided the food into its mouth.
Reichel concluded from her research that the front teeth of the Tyrannosaurus Rex were designed to grip and pull. The teeth lining the side of the jaw pierced and ripped its prey’s flesh while its back teeth not only helped slice and dice the flesh, but also forced food to the back of the throat.
Besides its legendary search engine, Google has more than 60 internet-related services under its umbrella such as You Tube, Picassa, Google Maps and those Android mobile apps, to name a few. Right now, each of those services has separate privacy policies which require you to provide information about yourself for each product you use.
The new policy will allow Google to take all of the information you’ve completed at each of those services and merge them into one master file.
The search engine giant says doing so would help make Google services more user friendly and allow for a customized online experience.
But there is outrage is over how much personal information Google will gain and maintain, not only from you directly, but by tracking each of your online movements, such as web searches and pages visited leading concern that, in the wrong hands, such information could prove to be harmful.
More Americans believe Earth is getting warmer
New research shows attitudes about global warming have been changing in the United States.
The Brookings Institution, a Washington, D.C., think tank, released the latest results of its National Survey of American Public Opinion on Climate Change, which show a growing number of Americans believe global warming is occurring.
Sixty-two percent of respondents said “yes” when asked “is there solid evidence that the average temperature on Earth has been getting warmer,” while 26 percent said “no” and the remaining 12 percent answered “unknown” or “neutral.”
The survey, conducted by the University of Michigan and Muhlenberg College, points out that personal observations about the weather and temperature changes were key factors which influenced how people responded.
But, the survey also showed that most who responded that they do not see proof of increased temperatures believe that scientists and the media are distorting the evidence, with more than eight out of 10 nonbelievers saying scientists are overstating the evidence.
In 2008, the first year the survey was conducted, 72 percent believed the Earth was getting warmer, but the number dropped to 65 percent the following year and fell even further, to 58 percent, a year after that.
Are rich people ethical?
Now, researchers the University of California, Berkeley, have released the results of seven separate studies which find that upper-class participants were more likely to lie and cheat when gambling or negotiating, cut people off when driving, take candy reserved for children, and approve unethical behavior in the workplace.
The researchers measured the ethical tendencies of more than 1,000 people from lower, middle and upper-class backgrounds. To help determine their social class rank, the subjects used an index called the MacArthur Scale of Subjective Socioeconomic Status.
The research subjects also filled out a number of surveys which exposed their attitudes about unprincipled behaviors and greed. They participated in various tasks designed to measure their actual unethical behavior.
“The increased unethical tendencies of upper-class individuals are driven, in part, by their more favorable attitudes toward greed,” says Paul Piff, a doctoral student in psychology at UC Berkeley and lead author of the study, which was published in the Proceedings of the National Academy of Sciences (PNAS) .
The research was conducted on the UC Berkeley campus, in the San Francisco Bay area, and nationwide.