Fluctuating sea levels and global cooling caused a significant decline in the number of crocodylian species over millions of years, according to new research.
Sep 24, 2015 in Archaeology & Fossils
The size, shape, and solidity of an egg can tell us a lot, but until we can see inside, there is still an opportunity for surprise. Unfortunately, when you have an ancient fossilized lizard egg, you can't just crack it open ...
Sep 16, 2015 in Evolution