The more things change: Trait variance provides evidence of pervasive mosaic evolution
Sets & the city: World Science Festival 2012, New York style (Part 2 of 2)
Entire galaxies feel the heat from newborn stars: Bursts of star birth can curtail future galaxy growth
(Phys.org) —Astronomers using the NASA/ESA Hubble Space Telescope have shown for the first time that bursts of star formation have a major impact far beyond the boundaries of their host galaxy. These energetic ...
Apr 25, 2013
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Computer simulations show evolution of birds' crouch likely due to increase in forelimb size (w/ video)
(Phys.org) —An international team of researchers working together to discover how, when and why birds have evolved to stand in a crouching position, have come to the conclusion that it was due much more ...
Apr 25, 2013
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Researchers use Moore's Law to calculate that life began before Earth existed
(Phys.org) —Geneticists Richard Gordon of the Gulf Specimen Marine Laboratory in Florida and Alexei Sharov of the National Institute on Aging in Baltimore have proposed, in a paper uploaded to the preprint ...
Apr 18, 2013
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Out of Africa date brought forward
(Phys.org) —A study on human mitochondrial DNA has led to a new estimate of the time at which humans first began to migrate out of Africa, which was much later than previously thought.
Mar 22, 2013
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Early birds had four wings, not two, study reports
Some primitive birds boasted four wings, before evolution led them to ditch their hind feathers in favor of webbed or scaly feet, scientists in China said on Thursday.
Mar 14, 2013
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Digging yields clues: Biologists connect burrowing behavior in mice to genes
Nature vs. nurture has long been one of the great debates in science—is behavior hard-wired into the brain, or determined by environment? In at least some cases, Harvard researchers are showing, how animals ...
Jan 16, 2013
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Fluctuating environment may have driven human evolution
A series of rapid environmental changes in East Africa roughly 2 million years ago may be responsible for driving human evolution, according to researchers at Penn State and Rutgers University.
Dec 24, 2012
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Magnesium oxide: From Earth to super-Earth
The mantles of Earth and other rocky planets are rich in magnesium and oxygen. Due to its simplicity, the mineral magnesium oxide is a good model for studying the nature of planetary interiors. New work from ...
Nov 22, 2012
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Small lethal tools have big implications for early modern human complexity
On the south coast of South Africa, scientists have found evidence for an advanced stone age technology dated to 71,000 years ago at Pinnacle Point near Mossel Bay. This technology, allowing projectiles to ...
Nov 07, 2012
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Dark matter filament studied in 3-D for the first time
(Phys.org)—Astronomers using the NASA/ESA Hubble Space Telescope have studied a giant filament of dark matter in 3D for the first time. Extending 60 million light-years from one of the most massive galaxy ...
Oct 16, 2012
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Developmental biologist proposes new theory of early animal evolution, challenges basic assumptions
Study demonstrates evolution of stereotypes
(Phys.org)—Researchers from Scotland suggest that stereotypes form and evolve over time through social transmission of information, similar to the way in which languages evolve.
Sep 07, 2012
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Sex chromosome evolution tracked in fruit fly
(Phys.org) -- Fruit flies are commonly used in genetics research because their lifespan is short, they are easy to breed in the laboratory, and mutants are widely available. There are about 1,500 known species. ...
Jul 20, 2012
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