Since marine mammals were federally protected, the only course of action for federal and state officials was to find a nonlethal way to keep the sea lions away from the locks. Steve knew the task ...

Step into the heart of a country where East meets West, where history whispers through ancient ruins and natural beauty stuns ...

Hidden beneath the Philippine Sea, this colossal supervolcano features a caldera an impressive 150 km (93 mi) in diameter, making it the largest known caldera in the world, even larger than ...