The high prices also highlight the fact that the U.S. is too heavily dependent on fossil fuels that we import from unstable parts of the world. To protect our national security, we must become more energy secure. ↗
The Burgess Shale is not unique, but for those who study evolution and fossils it has become something of an icon. It provides a reference point and a benchmark, a point of common discussion and an issue of universal scientific interest. ↗
