Scientists have been able to reconstruct, for the first time, the intricate three-dimensional structure of the backbone of early tetrapods, the earliest four-legged animals. High-energy X-rays and a new data extraction protocol ...
Archaeology
Jan 13, 2013
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Somites, precursors for the segmental structures such as the vertebral column, ribs and skeletal muscles, form periodically by segmentation of the rostral parts of the presomitic mesoderm (PSM). This periodic event is regulated ...
Cell & Microbiology
Jan 9, 2013
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(AP)—Peru's government is taking steps to protect one of the world's largest fossil deposits from being damaged by this year's Dakar Rally, the Culture Ministry said Thursday.
Paleontology & Fossils
Jan 4, 2013
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A University of Alberta researcher's examination of fossilized dinosaur tail bones has led to a breakthrough finding: some feathered dinosaurs used tail plumage to attract mates, much like modern-day peacocks and turkeys.
Archaeology
Jan 4, 2013
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(Phys.org)—From a single-cell egg to a fully functional body: as embryos develop and grow, they must form organs that are in proportion to the overall size of the embryo. The exact mechanism underlying this fundamental ...
Cell & Microbiology
Dec 20, 2012
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Researchers have discovered what may be the earliest dinosaur, a creature the size of a Labrador retriever, but with a five foot-long tail, that walked the Earth about 10 million years before more familiar dinosaurs like ...
Archaeology
Dec 4, 2012
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(Phys.org)—Probiotics like those found in yogurt are not only good for people—they are also good for fish. A new study by scientists at the Institute of Marine and Environmental Technology found that feeding probiotics ...
Biotechnology
Dec 3, 2012
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(Phys.org)—A new way to visualize single-cell activity in living zebrafish embryos has allowed scientists to clarify how cells line up in the right place at the right time to receive signals about the next phase of their ...
Cell & Microbiology
Nov 13, 2012
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A near-complete skeleton of a mammoth which lived between 200,000 and 500,000 years ago has been found near Paris, the French National Institute for Preventive Archaeological Research said Tuesday.
Archaeology
Nov 6, 2012
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Researchers have provided a glimpse at genetic expression in long-extinct fossil dinosaurs. This new insight comes from the discovery of a correlation between the genetic patterning observed in today's chickens and crocodiles, ...
Biotechnology
Oct 23, 2012
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