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Snorkeling is not just for coral reefs. There's a lot of beauty in Appalachian mountain streams and you'll find them on the Blue Ridge Snorkel trail.

We look at local effort by kayakers to clean up the Anacostia River, which is polluted with trash and debris.

Bat populations have been on the decline in the U.S. for decades due to climate change, habitat loss and a nasty fungal disease. But one species has been making a major comeback in Tennessee: the gray bat.

The Department of the Interior is requiring the National Park Service to post signs nationwide by June 13 asking visitors for feedback on any information they feel misrepresents American history.

The Trump administration is reinterpreting a key word in the Endangered Species Act that could have big consequences for species at risk.

States like New Hampshire are experiencing peak leaf. We have some tips on how to observe fall foliage safely.

For the first time in half a century, a group of killer whales, or orcas, returned to a cove in Washington's Puget Sound. Penn Cove is known for a roundup by hunters that took place in the 1970s.

A Virginia construction project threatens nesting sea birds. Now, the governor has announced he will protect the birds in light of Trump Administration rollbacks to the Migratory Bird Treaty Act.

A scientist in the study says it's likely the sharks were exposed to Rio de Janeiro wastewater contaminated from human use of cocaine.

The International Olympic Committee will decide Friday whether to accept the bid by Kazakhstan's largest city, Almaty, to stage the 2022 Winter Games, or instead offer it to rival contender Beijing.