Visiting a national park often involves scanning the horizon for charismatic animals. And most visitors arrive with a mental ...

Nearly 20 years ago, the last known Cascades frog disappeared from Lassen Volcanic National Park. Now researchers are ...

In the rugged terrain where Mexico and the United States meet, a border wall is just the latest obstacle fragmenting habitats ...

There’s a quiet magic that settles over the world when winter arrives. It’s a season that takes the thunderous applause of a ...