Check out a week full of exciting shark programming on Nat Geo Wild's SharkFest, starting July 23. Sharks don't have tongues to help them swallow food, so instead, some shrug their shoulders to keep ...

In addition, they used measurements of mosasaur pectoral girdles published in other studies. They determined that the mosasaurs' unusually large and low-placed pectoral girdle supported large muscle ...

As a known repressor, the restriction of Gli3 to the anterior may result in the loss of skeletal structure in this domain. When the researchers experimentally "posteriorised" pectoral fin buds of ...

When a terrestrial vertebrate stands, its body hangs from the vertebral column which supports the weight of the trunk like the arch of a suspension bridge and transmits it to the ground by two sets of ...