A sandstone slab containing dinosaur footprints might also contain ... at Columbia University and his colleagues. Sailing stones are rocks or boulders that move across landscapes without ...

The controversial artifacts were seized by Peruvian customs agents in October and intended for "a Mexican citizen," the Associated Press reported. Mexican journalist and self-described "UFOlogist ...

These polished stones collected in Wyoming may have been ... the Times that the technique detailed in the paper for inferring dinosaur movements could still be a significant contribution to ...