Fossils of alvarezsaurid dinosaurs show bird-like air sacs in their bones. Scans revealed hollow spaces connected to their ...

So far, they have discovered a fish fossil and several fossil tracks ... the museum currently houses dinosaur bones found in this area, and the crew has high hopes they will find more.

While the teeth and bones of the fossil were relatively “poorly preserved,” outlines of multiple fins allowed researchers to identify the prehistoric fish as a species new to science.

Brazilian paleontologist Tito Aureliano found that hollow bones filled with little air sacs were so important to dinosaur survival, they evolved independently several times in different lineages.

A fish fossil. Nearly all fossils we find are from marine ... David adds, 'The water leaves mineral crystals behind in spaces in the bones. This is why dinosaur fossils often have a sponge- or ...

Kids of all ages (and I include adults here) are fascinated by dinosaurs that break records for the biggest, the longest, the scariest or the fastest.