The origin of animals was one of the most important events in the history of Earth. Beautifully preserved fossil embryos suggest that our oldest ancestors might have existed a little more than half a billion years ago.
Archaeology
May 30, 2017
0
54
(Phys.org)—A team of researchers at Vrije Universiteit Amsterdam has built, for the first time, a molecular fountain. The group has published a paper in the journal Physical Review Letters describing how they created the ...
An essential mineral in our diets has an unexpected role in helping living things remain adapted to the rhythms of night and day, scientists have found.
Cell & Microbiology
Apr 13, 2016
3
33
New research sheds light on how the rhythms of daily life are encoded in the brain. Scientists at Washington University School of Medicine in St. Louis have discovered that different groups of neurons, those charged with ...
Cell & Microbiology
Mar 1, 2016
0
17
Scientists long have used the "molecular clock" to establish when species may have branched from each other on the Tree of Life.
Evolution
Nov 30, 2015
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2
A new study led by UC Santa Cruz researchers has found that a protein associated with cancer cells is a powerful suppressor of the biological clock that drives the daily ("circadian") rhythms of cells throughout the body. ...
Cell & Microbiology
Jun 2, 2015
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119
Molecular clocks—based on changes in genetic material—indicate much younger ages for a wide variety of plants found as fossils in southern Argentina than do the solid, geologic dates of those fossils, according to geoscientists ...
Paleontology & Fossils
Dec 2, 2014
2
0
Human existence is basically circadian. Most of us wake in the morning, sleep in the evening, and eat in between. Body temperature, metabolism, and hormone levels all fluctuate throughout the day, and it is increasingly clear ...
Cell & Microbiology
Nov 20, 2014
0
0
(Phys.org) —A pair of researchers affiliated with several institutions in Australia, believe they may have found a way to solve the discrepancy problem that exists between molecular biologists and paleontologists who disagree ...
(Phys.org) —A team of researchers from the U.K. (led by Mario dos Reis) is directly challenging the results of a study conducted by another team (led by Maureen O'Leary) that concluded last year that placental mammals came ...
