The prehistoric "rat" had huge teeth, a new study says, and the animal likely competed with saber-toothed cats and giant, flightless, meat-eating birds.
The massive land animals were killed off by illnesses and parasites, say the authors of a new book who looked at disease-carrying insects trapped for millions of years in amber.
A proposed law would impose stiff fines on those who create exact replicas or sell images of Egypt's famous antiquities without permission. But is it more bark than bite?
Tomb engravings dating back 6,000 years are among the latest discoveries unearthed on the route of a controversial highway under construction in Ireland.
Three-dimensional scans of the nearly intact calf and tiny air bubbles inside its lungs may reveal clues about climate change and the demise of mammoths.
New species or diseased human? Scientists have homed in on the genetic causes of a rare growth condition and say it may explain the unusual "hobbit" recently found in Indonesia.
Bamboo-dependent pandas competed with ten-foot apes—and maybe even early humans—for food and territory in ancient China, scientists familiar with new fossils say.
A "mummified" dinosaur, a frozen baby mammoth, and prehistoric penguins the size of people were among the ancient creatures that starred in our most popular paleontology stories of 2007.
