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 ...

Fingernail scratch marks streaked Zach Adams’ arms just after 20-year-old nursing student Holly Bobo disappeared, according to state witnesses, and investigators said he looked nervous then, even ...

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 ...