Beavers are some of the world's most prolific ecosystem engineers, creating, maintaining and radically altering wetlands almost everywhere they live. But what, if anything, might control this ...

SALAMANDER HOTEL: The N.C. Arboretum's new Willow Pond project features three distinct ponds, a boardwalk, a 20-person teaching shelter and interpretive signage, complete with a frog kiosk that plays ...