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Ovarian tumor, with teeth and a bone fragment inside, found in a Roman-age skeleton

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This shows an ovarian tumor, with teeth and a bone fragment inside, found in a Roman-age skeleton: Macroscopic view of the ovarian teratoma, with two teeth adhering to the inner surface. Two more teeth were found, along with a small bone fragment. (Credit: ANTROPÒLEGS.LAB - UAB)

Jan. 24, 2013 — A team of researchers led by the Universitat Autònoma de Barcelona has found the first ancient remains of a calcified ovarian teratoma, in the pelvis of the skeleton of a woman from the Roman era. The find confirms the presence in antiquity of this type of tumour -- formed by the remains of tissues or organs, which are difficult to locate during the examination of ancient remains. Inside the small round mass, four...

'Invisible' Filipino history in Annapolis documented

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Jan. 23, 2013 — Filipinos have been an invisible minority in Annapolis for more than a century. Now, researchers at the University of Maryland are using oral histories as a way to flesh out their life and times -- documenting the incredible challenges they faced -- and successes they celebrated.

After the Spanish-American War, the Philippines became a U.S. territory. Filipinos were brought to Annapolis -- home of the Naval Academy -- to serve as desk interns, fire fighters...

Retrovirus in the human genome is active in pluripotent stem cells

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Jan. 23, 2013 — A retrovirus called HERV-H, which inserted itself into the human genome millions of years ago, may play an important role in pluripotent stem cells, according to a new study published in the journal Retrovirology by scientists at UMass Medical School. Pluripotent stem cells are capable of generating all tissue types, including blood cells, brain cells and heart cells. The discovery, which may help explain how these cells maintain a state of pluripotency and are able to...

Previous unknown fossilized fox species found

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This is a Malapa fox fossil. (Credit: Wits University)

Jan. 23, 2013 — Researchers from Wits University, the University of Johannesburg and international scientists have announced the discovery of a 2-million-year-old fossil fox at Malapa, South Africa, in the Cradle of Humankind World Heritage Site.

In an article published in the journal Transactions of the Royal Society of South Africa, the researchers describe the previously unknown species of fox named...

Sex of early birds suggests dinosaur reproductive style: New way to identify gender of ancient avian species

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Reconstruction of Confuciusornis sanctus. (Credit: Stephanie Abramowicz, NHM Dinosaur Institute)

Jan. 22, 2013 — In a paper published in Nature Communications on January 22, 2013, a team of paleontologists including Dr. Luis Chiappe, Director of the Natural History Museum of Los Angeles County's (NHM) Dinosaur Institute, has discovered a way to determine the sex of a prehistoric bird species.

Confuciusornis sanctus, a 125-million-year-old Mesozoic bird, had...

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unexplained artifacts
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Evolution

Timeline: Human Evolution

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Fossils 

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Book review

Dinosaurs Encyclopedia

Book Review

Dinosaurs: The Most Complete, Up-to-Date Encyclopedia for Dinosaur Lovers of All Ages ... WRITTEN BY A PROFESSIONAL paleontologist specifically for young readers, this guide to the Dinosauria is packed...