It's the
Neatorama Monday collaboration image!
LiveScience image gallery offers up this beaut, calling it "How To Spot T. Rex Footprints". Says here this print is from a "theropod, the same kind of dinosaur that T. Rex was." I suppose. although I thought Rex's nasty talons would sink into the muck and give a different impression.
Be sure to visit our friends at
Neatorama for more neato stuff all the time!