Watch 1 Billion Years of Shifting Tectonic Plates in 40 Mesmerizing Seconds

Ancient DNA From 1 Million Years Ago Discovered in Antarctica

Some Megafaunal Species Survived in New Guinea until 20,000 Years Ago

Archaeologists search for Borders valley's day of destruction. Archaeologists are hoping to leave a different type of mark on a remote Borders valley destroyed by an English army almost 500 years ago.