Study reveals domestic horse breed has third-lowest genetic diversity
A new study by Dr. Gus Cothran, professor emeritus at the Texas A&M School of Veterinary Medicine & Biomedical Sciences (CVM), has found that the Cleveland Bay (CB) horse breed has the third-lowest genetic variation level of domestic horses, ranking above only the notoriously inbred Friesian and Clydesdale breeds. This lack of genetic diversity puts the breed at risk for a variety of health conditions. CB is an old English... [[ This is a content summary only. Visit my website for full links, other content, and more! ]]
Why some planets eat their own skies
For many years, for all we knew, our solar system was alone in the universe. Then better telescopes began to reveal a treasure trove of planets circling distant stars. Artist's impression of an exoplanet smaller than Neptune. A new study suggests a reason why such planets rarely grow larger than Neptune: the planet’s magma oceans begin to eat the sky [Credit: NASA/ESA/G. Bacon (STScI)/ L. Kreidberg; J. Bean (U. Chicago)/H. Knutson... [[ This is a content summary only. Visit my website for full links, other content, and more! ]]
Hot superplumes ‘chicken-and-egg’ with Earth’s supercontinents
Curtin University researchers suggest a "chicken-and-egg" relationship exists between the Earth's mantle-located superplumes and surface-located supercontinents, adding their findings to a scientific community divided on what is happening deep inside the planet's surface. Credit: Curtin UniversityPublished in Nature Communications and Geology, researchers from Curtin's Earth Dynamics Group analyzed the abundance of nickel, chromium... [[ This is a content summary only. Visit my website for full links, other content, and more! ]]
Rare animals and plants organize in ghettos to survive
Similar to the organization of human cities, animal and plant communities have ghettos or ethnic neighbourhoods, where low-abundant species group to enhance their persistence against more competitive species. This unexpected ecological pattern is the conclusion of an international study about biodiversity in competitive environments. Corals are among the studied communities [Credit:: Bruno Glatsch]"Animal and plant communities... [[ This is a content summary only. Visit my website for full links, other content, and more! ]]
Penguin study reveals Southern Ocean’s Ice Age history
A new scientific study headed by the University of Otago has revealed important clues as to how Southern Ocean ecosystems responded to past global climate change events. King penguins [Credit: Yves Cherel]The international team of researchers, led by University of Otago Zoology Ph.D. student Tess Cole, assembled DNA evidence from 11 of the world's penguin species, and found strong evidence for sudden population shifts and expansions,... [[ This is a content summary only. Visit my website for full links, other content, and more! ]]
Distant Milky Way-like galaxies reveal star formation history of the universe
A new radio image is covered with dots, each of which is a distant galaxy. The brightest spots are galaxies that are powered by supermassive black holes and shine bright in radio light. But what makes this image special are the numerous faint dots filling the sky. These are distant galaxies like our own that have never been observed in radio light before. Composite view of an observation showing thousands of galaxies in radio light... [[ This is a content summary only. Visit my website for full links, other content, and more! ]]
Meteorites lend clues to solar system's origin
The isotopic composition of meteorites and terrestrial planets holds important clues about the earliest history of the solar system and the processes of planet formation. Artist's conception of the dust and gas surrounding a newly formed planetary system [Credit: NASA]Lawrence Livermore National Laboratory (LLNL) scientists and a collaborator from the University of Munster reviewed recent work that shows how meteorites exhibit a... [[ This is a content summary only. Visit my website for full links, other content, and more! ]]
Mercury's volcanic activity - or lack of it - could help astronomers find other Earth-like worlds
If you wanted to narrow down the search for Earth-like worlds in a vast universe, how might you go about it? According to Paul Byrne, planetary geologist at North Carolina State, looking for evidence of volcanic activity is a good start. While the technology we have right now can't tell if volcanic activity is happening on distant worlds, data from planets in our inner solar system might give us a way to identify volcanically active... [[ This is a content summary only. Visit my website for full links, other content, and more! ]]
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