Meet Mosura fentoni, a bizarre 506-million-year-old "sea-moth" with three eyes, claws, and an abdomen full of gills.

Evidence of this explosion is present throughout the Burgess Shale, leading to its establishment as a world heritage site by UNESCO in 1981, NPS said. Yoho National Park is in the Canadian Rockies of ...

WASHINGTON (CNN) --The Predator drone was designed to gather intelligence on enemy forces without putting U.S. pilots at risk, but it's also found a role as a deadly offensive weapon in America's ...