Spread mainly by hitching rides on watercraft, the fast-reproducing mollusks clog water infrastructure, cling to marinas and docks, and outcompete native species. Utah and Colorado are ramping up ...

You never truly know what might be just below the surface, hidden from view until the moment it suddenly appears. Whether you’re exploring the outdoors or simply enjoying time near the water, nature ...

Winter is a surprisingly great time to explore some of America's best national parks, because the crowds are up to 90 percent ...