The discovery of a series of unusual "scratch marks" on a forest pathway has sparked any number of weird and wild theories online. Caelyn, from Leeds in the U.K., turned to Reddit for answers after ...

Male dinosaurs used to create giant scratch marks on rocks as a way to show off to potential mates. This finding comes from University of Colorado, Denver paleontologist, Martin Lockley, after ...

A weird Mars image shows a landscape full of squiggly lines, but NASA has a good idea how it came to be. Freelance writer Amanda C. Kooser covers gadgets and tech news with a twist for CNET. When not ...