The ancestors of modern humans interbred with Neanderthals and another extinct line of humans known as the Denisovans at least four times in the course of prehistory, according to an analysis of global genomes published on Thursday in the journal Science. The interbreeding may have given modern humans genes that bolstered immunity to pathogens, the authors concluded. “This is yet another genetic nail in the coffin of our over-simplistic models of human evolution,” said Carles Lalueza-Fox, a research scientist at the Institute of Evolutionary Biology in Barcelona who was not involved in the study. The new study expands on a series of findings in recent years showing that the ancestors of modern humans once shared the planet with a surprising number of near relatives — lineages like the Neanderthals and Denisovans that became extinct tens of thousands of years ago. Before disappearing, however, they interbred with our forebears on at least several occasions, and toda...
When you gain too much weight, your body starts to store your fat in unusual places. With increasing obesity, some people’s regular areas to store fat are so full that the fat is deposited into the organs and around the heart. In addition to the health aspects of losing belly fat, there is also the cosmetic aspect, where having a flat belly will help you feel better in your own skin, and in your clothing and help give you a boost of self-confidence. Read on to learn tips on how to lose belly fat.
Abstract In Nigeria, the importance of highly trained manpower has long been recognized and has been the basis for agricultural development policies and strategies since independence, and within the last decade, serious efforts were made to make Nigeria self-sufficient and reliant in food production by organizations and institutions within the nation of which the universities were not left out. It was against this background that the cross-border agricultural program was introduced by an NGO called Learning-by-Doing, and was the platform which sa w a batch of fifty agro- students sent to Israel for an eleven months practical programme, in the Israeli’s kibbutzim. The NGO is chaired by a prominent nationalist and farmer, Chief Audu Ogbe and sponsored by two Nigerians and three Israelis. The organization has the following objectives; which are to: 1. expose young Nigerian undergraduates of agriculture and agricultural related disciplines to modern and improved eq...
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