.... physical proof that human beings may have evolved from ape-like creatures. Even with this, there are still disputes in the paleoanthropological field of whether or not this is true. Still, many choose to believe their religious creation stories where a God created humans. Whether it is Johanson's idea on human evolution or Leakey's or even the Roman Catholic's creation story, all are an individual own interpretation and neither wrong nor right. A paleanthropologist by the name of Donald Johanson is one of the many who have a very different view on the origin of humans. In 1974, he discovered forty percen .....

.... prevention of HBV infection. All individuals at risk for infection should be vaccinated. Post-exposure prophylaxis with immune globulin is also effective for non-immune individuals after a known exposure (e. g. needle stick). Consequences of HBV Infection HBV causes acute and chronic hepatitis. The chances of becoming chronically infected depends upon age. About 90% of infected neonates and 50% of infected young children will become chronically infected. In contrast, only about 5% to 10% of immunocompetent adults infected with HBV develop chronic hepatitis .....

.... If a meal has been particularly big, they may have to spend hours on the ground or a low branch before they can take off again. s are fastidious birds -- after eating, they clean their heads and necks by rubbing them on grass, rocks, or tree branches. s also bathe frequently and spend hours preening and drying their feathers. s were probably never very numerous in North America. The species once ranged along the entire Pacific Coast from British Columbia to Baja California. Fossils have been found as far east as Texas, Florida, and New York. More recently, howev .....

.... 10 pounds per week. A world population of 10 to 11 billion by mid century will have an individual allocation of 6 to 7 pounds per week, equivalent to the diet of todays members of society living in poverty. Food projections are extremely uncertain since natural disasters are unpredictable and may increase if the forecasted effects of global warming materialize. Also, environmental degradation is increasing while water allocations are decreasing. Society will not be suddenly surprised by a “crisis point” at which food supplies are no longer adequate. Todays isol .....

.... to watch dung beetles frantically work on a big cow pat. I remember how disgusting it appeared, but I was just fascinated at the concept of cow poop being rolled into balls and taken away by bugs. To realize why dung beetles are so important, you must first know a few facts about them. Dung beetles are named after their delight in rolling up dung. Dung beetles utilize the dung of cows, horses, rabbits, deer, sheep, and many other animals. How many of you think dung beetles actually eat manure? The answer is yes. Dung beetles just love fresh dung. They .....

.... take a look at exactly what went wrong during this fateful mission, and the outcome from this sorrowful occurrence. First, who exactly were those astronauts that died on the Challenger? Sharon Christa Corrigan McAuliffe, born in 1948, was the famous winner of the teacher-in-space program, was a high school teacher at Concord, N. H., a wife, and a mother of two children. She touched the lives of all those she knew and taught. As a school official in Concord said after her death, "To us, she seemed average. But she turned out to be remarkable. She handled suc .....

.... full and accurate diagnosis of the patient’s condition. By looking at the patient’s face, body and movements, the practitioner is already beginning to create a diagnosis. Another major diagnostic tool is the tongue. It is said that the state of the internal organs is reflected in the tongue, and the practitioner will note the color and shape of the tongue as well as its coating. All patients can expect their pulse to be taken. Unlike a Western doctor, the acupuncturist is not feeling merely the speed of the patient’s pulse. The practitioner will feel for changes .....

.... street heroin is cut or diluted. Usually this is done with another drug, or a substance such as sugar, starch, powdered milk, or quinine. Street heroin can also be cut with strychnine or other poisons. The reason heroin is one of the most deadly drugs is because there are varying rates at which the drug is diluted. Therefore a user never knows exactly how pure the drug is, hence, they do not know how much of the drug they should take, often leading to an overdose. Like alcohol, heroin is a depressant that slows down all the body functions. But heroin dif .....