Imagine a world where the boundaries between “fish” and “not-fish” blur, where the ancestors of birds and mammals once swam ...

The Trump administration Wednesday proposed a rollback of Endangered Species Act protections that left Western wildlife ...

The National Park Service is cutting off access to Cleetwood Cove Trail, the most heavily used trail at Crater Lake National ...

The endangered mammals are among the smallest of their kind in North America, according to the Bureau of Land Management.