(Medical Xpress)—Young children are not like sponges just soaking up information. They can actively evaluate what people know and go to the "experts" for information they want, reports a Cornell study published in a special ...
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New research from an international team of scientists suggests evolution, or basic survival techniques adapted by early humans, influences the decisions gamblers make when placing bets.
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(Medical Xpress)—Natural killer cells – a vital part of the immune system – have a dual role in protecting against infection and ensuring reproduction. Scientists suggest that the multi-tasking ability ...
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Researchers at Shriner's Hospital Pediatric Research Center at the Temple University School of Medicine, and the University of Pennsylvania have evidence linking the human papillomavirus 16 (HPV16) – the most common cause ...
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A mother's age at menopause may predict her daughter's fertility in terms of the numbers of eggs remaining in her ovaries, according to the new research published online in Europe's leading reproductive medicine journal Human Re ...
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(Medical Xpress)—Brazilian researchers Karina Fonseca-Azevedo and Suzana Herculano-Houzel suggest humans evolved bigger brains because they learned to cook their food. In a paper published in the Proceedings of ...
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(Medical Xpress)—Early life experience results in a broad change in the way our DNA is "epigenetically" chemically marked in the brain by a coat of small chemicals called methyl groups, according to researchers at McGill ...
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A new study published today in the journal Applied Physiology, Nutrition, and Metabolism (APNM) looks beyond the much-feared weight gain common to first-year students and reports on the full 4-year impact of higher educat ...
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Researchers at the University of Wisconsin-Madison's Institute on Aging are studying how adults overcome social and economic challenges and whether it matters for their health, with a special focus on human resilience in ...
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Cigarette smoke reduces the production of a Fallopian tube gene known as "BAD", which helps explain the link between smoking and ectopic pregnancy. The finding, from scientists led by Drs Andrew Horne and Colin Duncan at ...
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The offspring of women who were given micronutrient supplements (minerals needed in small quantities, such as iron, iodine and vitamin A) before they became pregnant had gene modifications at birth as well as when they were ...
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Further work carried out on mice suggests that this gene plays a part in motor network cross-over. Cross-over is a key factor in the transmission of brain signals, because it allows the right side of the brain to control ...
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Neuroimaging has provided fascinating insight into the dynamic nature of human brain maturation. However, most studies of developmental changes in brain anatomy have considered individual locations in relative isolation from ...
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Brain tissue is a major consumer of energy in the body. If an animal species evolves a larger brain than its ancestors, the increased need for energy can be met by either obtaining additional sources of food or by a trade-off ...
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The "switching on" or expression of specific genes in the human genome is what makes each human tissue and each human being unique. A new study by researchers at the Johns Hopkins Bloomberg School of Public Health, the Lieber ...
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Homo sapiens See text for extinct species.
Homo is the genus that includes modern humans and their close relatives. The genus is estimated to be about 2.5 million years old, evolving from Australopithecine ancestors with the appearance of Homo habilis. Appearance of Homo coincides with the first evidence of stone tools (the Oldowan industry), and thus by definition with the beginning of the Lower Paleolithic.
All species except Homo sapiens (modern humans) are extinct. Homo neanderthalensis, traditionally considered the last surviving relative, died out 24,000 years ago, while a recent discovery suggests that another species, Homo floresiensis, may have lived as recently as 12,000 years ago. Given the large number of morphological similarities exhibited, Homo is closely related to several extinct hominin genera, most notably Kenyanthropus, Paranthropus and Australopithecus. As of 2007[update], no taxon is universally accepted as the origin of the radiation of Homo.
This text uses material from Wikipedia licensed under CC BY-SA
