Most modern birds solved this issue by evolving shorter appendages to accompany their tertial feathers. But even though ...

Archaeopteryx is the fossil that proved Darwin right. It's the oldest known fossil bird, and it helps show that all birds— ...

Experts shined UV light on the Chicago Archaeopteryx to expose otherwise invisible soft tissues.

If it seems to you like your neck and low back get all the attention, to the exclusion of the mid and upper back areas, you may well have that right. Here's a run-down of the things you need to know ...

Rib cage pain, especially in the upper ribs, is relatively common in pregnancy ... and a PET scan may be used to find other types of cancer. A bronchoscopy and/or a CT scan of the chest can help ...