Every increase in air pollution kills a few more people; find Demosthenes B. Panagiotakos, PhD, and colleagues at the University of Athens, Greece. For every one-unit increase in carbon monoxide, the researchers suggest, there are two or more extra deaths…
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A mixture of pollutants, principally ground-level ozone, produced by chemical reactions in the air involving smog-forming chemicals. A major portion of smog-formers comes from burning petroleumbased fuels such as gasoline. Other smog-formers, volatile organic compounds, are found in products such…
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Pollution in the ocean is a major problem that is affecting the ocean and the rest of the Earth. Pollution in the ocean directly affects ocean organisms and indirectly affects human health and resources. Oil spills; toxic wastes, and dumping…
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Most Europeans can trace their roots back to two ancient groups of huntergatherers, rather than the Neolithic farmers who settled more recently, say geneticists. Researchers have found that 80 per cent of modern European men have inherited their Y-chromosomes from…
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The term Caucasoid was introduced in XVIII century by Johann Blumenbach, a biology scientific who had a collection of human scalps. One of them, which had been collected from the European region of Caucasus, seemed to him more beautiful and…
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The first modern human being was called homo habilis , the first of the homo genus. This species developed stone tools for use in daily life. Homo habilis means “Handy Man.” He existed from about 2.2 to 1.5 million years…
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