(PhysOrg.com) -- There has been some debate over the last century or so about whether the extinct American lion, Panthera atrox, which dates from the Pleistocene, is related to present day African ...

[I'm out in Grand Staircase-Escalante National Monument for some late season fieldwork this week. Here's an essay from the archive, originally posted on October 24, 2011.] The Page Museum at the La ...

The Page Museum at the La Brea Tar Pits is a wonderful place. I don’t mean wonderful in the overused, everyday sense of “That pizza was wonderful”, or “If you could hand in your TPS report before you ...