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 ...

Arizona has no shortage of places where beauty slaps you across the face, but Wahweap Overlook delivers a full five-finger knockout that leaves you wondering if someone secretly installed a massive HD ...

Scientists found clues in old boxes of bones that may explain why most large mammals vanished in the last 60,000 years.