Fish reveal details of bone density loss during space missions
Studies of medaka fish raised on the International Space Station shed light on how bone responds to sustained exposure to microgravity.
Studies of medaka fish raised on the International Space Station shed light on how bone responds to sustained exposure to microgravity.
Space Exploration
Sep 23, 2015
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Growing up, Stephanie Leco often would dig in her backyard and imagine finding fossils of a tyrannosaurus rex. She was fascinated with the idea of holding something in her hand that was millions of years old and would give ...
Archaeology
Sep 3, 2015
2
198
Injuries, birth defects (such as cleft palates) or surgery to remove a tumor can create gaps in bone that are too large to heal naturally. And when they occur in the head, face or jaw, these bone defects can dramatically ...
Polymers
Aug 13, 2014
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Sequencing the genomes of vertebrates can provide scientists with valuable clues about the evolution of the human genome. By analyzing and comparing different genomes, researchers can pinpoint variations in genes and proteins ...
Plants & Animals
Mar 12, 2014
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The ancestor of all creatures with jaws and a backbone was not a sleek, shark-like beast but a toothless, armoured fish, said a study Wednesday that rewrites Man's evolutionary history.
Archaeology
Sep 25, 2013
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A Singapore-based research team has used fluorescent labeling of embryonic cell populations to pinpoint the origin of scales and fins in modern-day fish. These tissues are evolutionary relics of the first skeletons and were ...
Evolution
Aug 28, 2013
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Researchers from the University of Valencia and the Natural History Museum of Berlin have studied the fossilised remains of scales and bones found in Teruel and the south of Zaragoza, ascertaining that they belong to a new ...
Archaeology
Jun 3, 2013
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(Phys.org)—Palaeontologists who examined a new fossil found in southern California have thrown doubt on earlier claims that a "killer walrus" once existed.
Archaeology
Jan 17, 2013
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(AP)—Mexican archaeologists said Friday they uncovered the largest number of skulls ever found in one offering at the most sacred temple of the Aztec empire dating back more than 500 years.
Archaeology
Oct 6, 2012
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(PhysOrg.com) -- Erich Fitzgerald, an Australian paleontologist, believes he has found the missing link between ancient toothed whales that caught and ate fish and modern baleen whales that eat by sucking in huge volumes ...