It's a girl … and she's pregnant! Paleontologists at North Carolina State University have determined that a 68 million year-old Tyrannosaurus Rex fossil from Montana is that of a young female, and ...

Please provide your email address to receive an email when new articles are posted on . Adults with medullary thyroid cancer who develop osteolytic bone metastases are more likely to experience ...

A Tyrannosaurus rex dinosaur that died 68 million years ago has provided some of the strongest evidence yet that birds are the closest-living relatives of dinosaurs, scientists said Thursday.

Cross section of the femur bone viewed under polarized light showing the thick layer of medullary bone within the medullary cavity. Disclaimer: AAAS and EurekAlert! are not responsible for the ...