Tracking Dinosaurs, Bear Dogs, and Scorpions With Fossil Footprints

You can, if you're lucky, leave something on Earth that will last for millions of years.

















from WIRED » Science http://feeds.wired.com/c/35185/f/661470/s/3a3bf99f/sc/10/l/0L0Swired0N0C20A140C0A50Cfossil0Efootprints0C/story01.htm

via Science News