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 ...

In 1798, a British sea captain spotted a speck of land while sailing in the South Pacific Ocean. He dubbed it “Pleasant Island.” But today, the island is known as Nauru. It’s the third-smallest ...

The mystery of Cicada 3301 began with an Internet message posted by a user named 3301: “Hello. We are looking for highly intelligent individuals. To find them, we have devised a test. There is a ...

For more than three decades, Michelle Philpots has not been able to create new memories. After two motor accidents — one in 1985 and a second in 1990 — the traumatic brain injuries she suffered led to ...