Conservation groups have objected, saying climate change imperils some of the bears' key food sources including whitebark pine cones. Some 50,000 grizzlies once roamed the western United States.

Cale Kennamer View from a Whitebark Pine survey around Alpine Lake just west ... Previous research suggests high summer temperatures cause lodgepole pine cones, the crossbill’s primary food source, to ...

I haven't made any of these for a while now, so I though I would make a batch. These will be on the website in the next ...

Conservationists are teaming up with the U.S. Forest Service and logging companies to clear scorched land and make room for ...

Using lift operators and climbers, Kittler and his team showed CBS News how his team hunts for pine cones. "The more that we lose forest, we're losing our clean air and clean water, our ability to ...

Using lift operators and climbers, Kittler and his team showed CBS News how his team hunts for pine cones. "The more that we lose forest, we're losing our clean air and clean water, our ability to ...

This fun and festive pine cone Christmas tree craft project is a fun and easy craft to celebrate the holiday season. Here's ...