A broken T. rex tooth found in another dinosaur's tail bone offers the first hard evidence that the king of all meat-eating beasts hunted live prey, US paleontologists said Monday.
Archaeology
Jul 15, 2013
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A team of RIKEN researchers has finally solved the riddle of how the turtle shell originated. By observing the development of different animal species and confirming their results with fossil analysis and genomic data, researchers ...
Evolution
Jul 9, 2013
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(Phys.org) —How do organisms adapt over time? Do they evolve through a series of small beneficial steps as envisioned by Charles Darwin, or through a series of rare but large jumps? Or through a combination of both?
Evolution
Jun 28, 2013
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Architect genes are responsible for organizing structures of the body during embryonic development. Some of them, namely the Hox genes, are involved in the formation of forelimbs. They are activated in two successive waves, ...
Biotechnology
Jun 6, 2013
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Through careful study of an ancient ancestor of modern turtles, researchers now have a clearer picture of how the turtles' most unusual shell came to be. The findings, reported on May 30 in Current Biology, help to fill a ...
Evolution
May 30, 2013
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The first new dinosaur named from Madagascar in nearly a decade, Dahalokely tokana was a carnivore measuring 9-14 feet long. Its fossils were found in 90-million-year-old rocks of northernmost Madagascar, from the time when ...
Archaeology
Apr 18, 2013
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A team of paleontologists in Mexico City say they have recovered the remains of an ancient mammoth, using methods typically employed by archaeologists—a first in Latin America.
Archaeology
Apr 10, 2013
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New research shows that a tiny piece of RNA has an essential role in ensuring that embryonic tissue segments form properly.
Cell & Microbiology
Mar 11, 2013
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Some millennia ago, Yes might have been the object of worship in ancient Egypt. Today, Yes – a modern, domestic house cat – is helping shed light on the practice of mummification and the lives of ancients, such as Ramses ...
Archaeology
Feb 1, 2013
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(Phys.org)—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 ...
Archaeology
Jan 16, 2013
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