Scientists have discovered an earlier origin to the human language pathway in the brain, pushing back its evolutionary origin by at least 20 million years.
Apr 20, 2020
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In a groundbreaking development in the field of anti-acne therapies, a team of researchers at University of California San Diego School of Medicine has created an acne vaccine that successfully reduces inflammation in a mouse ...
Jan 5, 2024
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An international group of researchers has tackled the controversial question of when measles first emerged, finding it could be linked to the rise of large cities. The team sequenced the genome of a measles strain from 1912 ...
Jun 18, 2020
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Our ability to selectively forget distracting memories is shared with other mammals, suggests new research from the University of Cambridge. The discovery that rats and humans share a common active forgetting ability—and ...
Nov 7, 2018
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A new study is helping to rewrite Ebola's family history. The research shows that filoviruses—a family to which Ebola and its similarly lethal relative, Marburg, belong—are at least 16-23 million years old.
Oct 24, 2014
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The HIV pandemic with us today is almost certain to have begun its global spread from Kinshasa, the capital of the Democratic Republic of the Congo (DRC), according to a new study.
Oct 2, 2014
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(Medical Xpress)—One thing that sets humans apart from other animals is our ability to intelligently and rapidly adapt to a wide variety of new challenges—using skills learned in much different contexts to inform and ...
Aug 12, 2013
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Researchers demonstrate today that 70 per cent of protein-coding human genes are related to genes found in the zebrafish and that 84 per cent of genes known to be associated with human disease have a zebrafish counterpart. ...
Apr 17, 2013
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When Charles Darwin first sketched how species evolved by natural selection, he drew what looked like a tree. The diagram started at a central point with a common ancestor, then the lines spread apart as organisms evolved ...
Jan 9, 2013
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(Medical Xpress)—Researchers at the Wellcome Trust Sanger Institute have identified the key gene in ensuring that our immune defences develop infection-fighting cells. No cells of the adaptive immune system - key to attacking ...
Dec 11, 2012
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A group of organisms is said to have common descent if they have a common ancestor. In modern biology, it is generally accepted that all living organisms on Earth are descended from a common ancestor or ancestral gene pool.
A theory of universal common descent via an evolutionary process was proposed by Charles Darwin in his book On the Origin of Species (1859), and later in The Descent of Man (1871). This theory is now generally accepted by biologists, and the last universal common ancestor (LUCA or LUA), that is, the most recent common ancestor of all currently living organisms, is believed to have appeared about 3.9 billion years ago. The theory of a common ancestor between all organisms is one of the principles of evolution, although for single cell organisms and viruses, single phylogeny is disputed (see: origin of life).
In his book The Ancestor's Tale, Richard Dawkins uses the word concestor as a substitute for "common ancestor." This new word is very gradually entering scientific parlance.
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