Look up! A powerful owl could be sleeping in your backyard

Picture this: you're in your backyard gardening when you get that strange, ominous feeling of being watched. You find a gray oval-shaped ball about the size of a thumb, filled with bones and fur—a pellet, or "owl vomit."

Climate change doesn't spare the smallest

In a normal year, biologists Daniel Janzen and Winnie Hallwachs spend about six months in Costa Rica, where they conduct research and pursue conservation efforts in Área de Conservación Guanacaste (ACG), a World Heritage ...

When planting trees threatens the forest

Campaigns to plant huge numbers of trees could backfire, according to a new study that is the first to rigorously analyze the potential effects of subsidies in such schemes.

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