The Toba super-volcano eruption 74,000 years ago was 5,000 times larger than that of Mount St. Helens. Somehow, ancient human populations in India survived it.

The newly found bones were close to the site of the famous ‘flower burial’ in Shanidar Cave, which overturned notions of Neanderthals as brutish subhumans and suggested they buried their dead.

One hundred million years ago, a bee got trapped in tree resin. Over time, geological forces converted the resin to amber. Now a scientist arrives on the scene, to tell us this bee’s story.

A new tyrannosaur species named Thanatotheristes, which means “reaper of death,” was the apex predator of its time, 79 million years ago in present day Alberta, Canada.

Scientists raced against a rising tide to recover a tantalizing fossil on an island in southeast Alaska. It turned out to be a species new to science.

New research shows that Homo erectus, an ancestor of human beings, lived as recently as 108,000 to 117,000 years ago in Ngandong, on the Indonesian island of Java.

Scientists found fossilized root systems of ancient trees - from what's now Earth's oldest known forest - near Cairo, New York. They looked "surprisingly modern," the scientists said.

A new study shows that, if they can be returned to San Francisco Bay, California's southern sea otter population can be tripled. There are now only about 3,000 of the otters left. But, first, they’ll need some help getting past the great white sharks.

Will our survival strategy for monarchs work? Initiatives emphasize milkweed plantings along roadsides. New research shows egg-laying monarchs much prefer off-road farmlands.

A remarkable find of fossil teeth from tiny, furry-tailed creatures - thought by scientists to be a human ancestor - dating back 145 million years.