Unusual bobcat tree den found in California fire burn zone

Biologists studying Southern California bobcats found a mother and three kittens this spring in an unusual den in a cavity up in a tree in an area intensely burned by a huge 2018 wildfire west of Los Angeles, the National ...

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."

Less light, more trees assist migrating birds

As migratory birds travel back and forth between their breeding and wintering grounds twice each year, they face many hazards. For species that migrate during the night, one of those dangers is the disorienting influence ...

Trees bring benefits to society, regardless of their origin

Trees planted in urban spaces provide a multitude of ecosystem services: they reduce air pollution and noise, provide habitat and shelter for other species, and reduce erosion during heavy rains. They also offer opportunities ...

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