In a new study published in Science, researchers analyzed the impacts of free-roaming bison in Yellowstone National Park.

September 11, 2001 was one of the darkest days in modern American history. In a series of coordinated terrorist attacks, carried out by al-Qaeda, hijacked commercial planes were turned into deadly ...

On November 12, 1966, in Clendenin, West Virginia, a group of gravediggers working in a cemetery spotted something strange. They glanced up from their work as something huge soared over their heads.

Allegedly conducted on the east end of Long Island during the Cold War, Project Montauk was a secret military experiment that used abducted children to develop psychological warfare techniques. The ...

Though Pope Formosus was dead, his body was exhumed, dressed in papal vestments, and perched on the stand — then he was found guilty of perjury and other crimes.

If his own confession before his brutal execution is to be believed, then Peter Niers slaughtered 544 people — 24 of which were pregnant women he killed for their fetuses. The legends of Peter Niers ...

Some 250 miles south of Lima, Peru, not far from the shores of the Pacific Ocean, there is a great arid plane — the site of one of the world’s oldest mysteries. This is the home of the Nazca Lines.

No pandemic in history was as deadly as the Black Plague. From the Middle Ages right up until the 1750s, the Bubonic Plague decimated Europe and the Middle East, wiping out an estimated 30 million ...

On February 22, 1970, 14-year-old Keith Sapsford made a tragic choice to become a stowaway. Desperate for adventure, the Australian teen snuck onto the tarmac at Sydney Airport and hid in the wheel ...

Kendrick Johnson was found dead in January 2013 in a rolled-up gym mat at Lowndes High School in Valdosta, Georgia. Was it a terrible accident or something more sinister? On January 11, 2013, the body ...

In September 1982, 12-year-old Johnny Gosch disappeared while delivering newspapers in West Des Moines. One night fifteen years later, his mother claims he visited her and told her he was the victim ...

The Civil War stands as the bloodiest conflict in American history. From 1861 to 1865, the country tore itself apart in fierce battles that pitted brother against brother, and neighbor against ...