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 ...
The evolution of terrestrial locomotion in vertebrates required the appearance of new behaviours and supporting appendicular structures 1,2,3,4,5,6,7,8. The skeletal changes included the origin of ...
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