We visited four of the country’s “crown jewels” and found deep concern for the park system’s future among Americans of all ...

National Park Service researchers have identified a previously unknown shark species in the limestone walls of Mammoth Cave, ...

The post Two Ancient Marine Creatures Found Deep In The World’s Largest Cave first on TwistedSifter. There are so many mysterious that remain here on this planet of ours, and many of them exist in ...

A huge earthquake hit off Russia's coast, and it was so strong it was picked up by seismographs in Kentucky. This event made me wonder about the biggest quake to ever shake the state. Do you remember ...