How a high-fat diet can make you anxious
When we're stressed out, many of us turn to junk food for solace. But new CU Boulder research suggests this strategy may backfire.
Jun 13, 2024
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When we're stressed out, many of us turn to junk food for solace. But new CU Boulder research suggests this strategy may backfire.
Jun 13, 2024
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In a new UCLA-led study, investigators shed light on the intricate processes underlying cancer evolution and define the optimal algorithms to analyze the genetic makeup of tumors.
Jun 11, 2024
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Some say the next step in human evolution will be the integration of technology with flesh. Now, researchers have used virtual reality to test whether humans can feel embodiment—the sense that something is part of one's ...
Jun 6, 2024
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A team of researchers have generated the first complete chromosome sequences from non-human primates. Published in Nature, these sequences uncover remarkable variation between the Y chromosomes of different species, showing ...
May 29, 2024
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Everyone knows that fiber is healthy and an important part of our daily diet. But what is fiber, and why is it healthy? Fiber is cellulose, the stringy stuff that plants are made of. Leaves, stems, roots, stalks, and tree ...
Mar 18, 2024
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Recent SARS-CoV-2 variants such as BA.4 and BA.5 developed abilities missing from the first omicron variants that allowed them to overcome humans' innate immunity, according to research from UCL.
Jan 16, 2024
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The evolution of higher cognitive functions in human beings has so far mostly been linked to the expansion of the neocortex—a region of the brain that is responsible, inter alia, for conscious thought, movement and sensory ...
Nov 29, 2023
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Using artificial intelligence technology and mathematical modeling, a research group led by Nagoya University has revealed that human behavior, such as lockdowns and isolation measures, affects the evolution of new strains ...
Nov 21, 2023
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Twenty years ago, Shoaib Akhtar became the first person recorded to bowl at 100mph (161km per hour) during the 2003 One-Day International Men's World Cup match for Pakistan against England. There was an expectation afterwards ...
Nov 2, 2023
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The SARS-CoV-2 virus responsible for COVID-19 can cause severe acute respiratory syndrome, contrasting with other coronaviruses that were known to cause mild seasonal colds prior to its emergence in 2019. This raises the ...
Oct 27, 2023
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Human evolution, or anthropogenesis, is the part of biological evolution concerning the emergence of Homo sapiens as a distinct species from other hominins, great apes and placental mammals. It is the subject of a broad scientific inquiry that seeks to understand and describe how this change occurred. The study of human evolution encompasses many scientific disciplines, most notably physical anthropology, primatology, archaeology, linguistics and genetics.
The term "human", in the context of human evolution, refers to the genus Homo, but studies of human evolution usually include other hominins, such as the Australopithecines. The Homo genus diverged from the Australopithecines about 2 million years ago in Africa. Scientists have estimated that humans branched off from their common ancestor with chimpanzees—the only other living homininis—about 5–7 million years ago. Several species of Homo evolved that are now extinct. These include Homo erectus, which inhabited Asia, and Homo neanderthalensis, which inhabited Europe.
Archaic Homo sapiens evolved between 400,000 and 250,000 years ago. The dominant view among scientists is the recent African origin of modern humans (RAO) that H. sapiens evolved in Africa and spread across the globe, replacing populations of H. erectus and H. neanderthalensis. Scientists supporting the alternative hypothesis on the multiregional evolution (ME) view modern humans as having evolved as a single, widespread population from existing Homo species, particularly H. erectus. The fossil evidence is insufficient to resolve this vigorous debate,. Studies of haplogroups in Y-chromosomal DNA and mitochondrial DNA have largely supported a recent African origin, while some researchers argue that evidence from nuclear genes supports a multiregional origin.
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