Frogs eat poisonous animals and themselves become toxic

Frogs eat poisonous animals and themselves become toxicFrogs eat poisonous animals and themselves become toxic Together with food in the small body of poisonous frogs from Central and South America arrive toxic substances(alkaloids) that they accumulate in your skin to protect it from greedy enemies. The source of the main group frog poisons, the so-called pumiliotoxins (PZX) are arthropods such as spiders, beetles or ants. Scientists from the USA have reported this in the specialized journal Proceedings of the National Academy of Sciences. Until now, the origin of pumiliotoxins was not known. First, the researchers suggested that frogs themselves produce toxic substances. But it was unexpectedly found that in laboratory animals in the skin does not contain any toxic substances. Читать полностью -->

Danish scientists have discovered in the fungus new antibiotic

Danish scientists have discovered in the fungus new antibioticDanish scientists have discovered a new antibiotic, which gives sensational results in the fight against serious diseases caused by multidrug resistant bacteria. Published in the American journal of Nature studies show that outdoor antibiotic copes with severe lung disease, blood poisoning and meningitis. New antibiotic named plectin was almost accidentally discovered in the fungus called pseudoplatanus blackish (Pseudoplectania Nigrella), which grows in the coniferous forests of Northern Europe. "We have a powerful weapon with which it became possible guaranteed to return the health of patients previously considered incurable," said research Director of the company Novozymes Einar Beck Jensen. It is expected that therapeutic drugs based on plectin will be on sale in the next few years. Gazety. Читать полностью -->

On Earth at any moment could erupt pandemic

On Earth at any moment could erupt pandemicAt any point on the globe can explode into huge influenza pandemic like 1918 or in 1968, which killed tens of millions of people, said the representative of the world health organization (who) Margaret Chan. "History shows that to stop the pandemic impossible," she said. Recently scientists are especially concerned about the mutation of avian influenza and the possibility that, in the end, it mutates and begins to spread from person to person. If this happens, the virus has already killed 55 people in Asia, will threaten the lives of millions of people around the world. "Bird flu has already killed hundreds of thousands of poultry, is a menacing warning to humanity from nature," said Dr. Chan, the first serious warning after 1968. Читать полностью -->

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