National parks and hundreds of other recreation sites are free to visit Friday

The National Park System includes parks, historic sites, monuments, recreation areas, battlefields and seashores. You can visit them all for free on Friday.

Watch: Eagle swoops down and catches fish midair, wowing onlookers

A bald eagle put on an impressive show for a man and his friends when it swooped down and caught a fish high in the air.

Los Angeles County community under quarantine due to invasive Tau fruit fly

In order to prevent further spread, residents living in the quarantine area are urged not to move any fruits or vegetables from their property.

Remarkable fossil shows dinosaur, mammal forever frozen in epic battle

The 125 million-year-old fossil was discovered in the Lujiatun Member of the Lower Cretaceous Yixian formation in China back in 2012.

Traps removed near Yellowstone after no sign of grizzly bear that killed woman

Wildlife workers on Tuesday halted their efforts to capture a grizzly bear that killed a woman over the weekend near Yellowstone National Park after finding no sign of the animal since the day of the attack.

Woman dies after grizzly bear encounter near Yellowstone National Park

A woman was found dead in Montana on Saturday after coming into contact with a grizzly bear on a trail west of Yellowstone National Park.

See the rare blue frog spotted in Rhode Island

Some of Rhode Island's frog species can occasionally exhibit rare blue coloration.