Scientists Find This Alien-Looking Creature In 500-Million-Year-Old Rocks

Scientists Spot 'Sailing Stone' Track in 200 Million-Year-Old Fossil

Discovery Of Bizarre Insect-Like Creature In Cave Long Covered By Ice Sheet Baffles Scientists

Mystery Creature ID'd From Newly-Discovered Gut Fossils

These Tiny Fossils Are the Oldest Evidence of Frog Ancestors Discovered in North America

These Alien-Looking Creatures Are Actually Newly Discovered Sea Slug Species

This Bizarre Opossum-Like Critter Rubbed Elbows With Dinosaurs 69 Million Years Ago

Scientists Discover 500-Million-Year-Old Worm 'Superhighway'

Mysterious Metallic Nodules Found On Deep-Sea Floor Baffle Scientists

Fossils of New Plant-Eating Dinosaur Species Found in Alaska

Watch: Man Breaks Rock To Find Incredible Fossil Inside

Archaeologists Discover 15,000-Year-Old Human-Built Mammoth Traps

Fossil Of A Nearly 6-Foot-Long Prehistoric Sea Scorpion Studied

Marine Researchers Discover Alien-Looking Creature at the Bottom of the Ocean

This Bizarre Sea Creature Appears To Have Come From An Alien Ocean

This Is What The World's Oldest Animal Looked Like

Is This The Oldest Jellyfish Fossil Ever Discovered?

A Citizen Scientist Discovers Ancient Star Remnant Encircled By Puzzling Rings

Aliens On Earth? This Cuttlefish Is The Weirdest Creature You'll See Today

This Gecko Has Been Trapped In Amber For 54 Million Years

Fossil Clams Found In Florida Quarry Reveal Traces Of Ancient Meteorite

Scientists Might Finally Know What Caused These Mysterious Craters in Siberia

Meteorite From A 4.5 Billion Year Old Asteroid Holds 2,600 Compounds

Rings Of 42,000-Year-Old Tree Could Reveal Earth's Magnetic Field Reversal History

Scientists May Have Solved The Mystery Of Universe's Expansion

Archaeologists Announce Discovery Of 300,000-Year-Old Skeleton In Germany