WASHINGTON - For more than a century, the study of dinosaurs has been limited to fossilized bones. Now, researchers have recovered 70 million-year-old soft tissue, including what may be blood vessels ...

A: Well, there are small, red structures within the vessels that look like nucleated red cells. So on the surface, this is a case of "if it looks like a duck…." But after 70 million years, just ...

Paleontologists have recovered what appear to be soft tissues from the thighbone of a 70-million-year-old Tyrannosaurus rex, potentially enabling dinosaur research to make a leap into the study of the ...

Blood vessel structures found preserved in a famous T rex fossil are helping scientists understand how dinosaurs healed from injuries. Scotty, nicknamed for a celebratory bottle of scotch used the ...

The soft tissues were recovered from the thighbone of a T. rex, known as MOR 1125, that was found in a sandstone formation in Montana. The dinosaur was about 18 years old when it died. The bone was ...