Saber teeth in predators evolved many times. Did it lead to their extinction?
A new analysis suggests saber teeth were highly specialized for puncturing prey, ultimately at the cost of durability.
paleontology
Matching dinosaur prints were found an ocean apart in Africa and South America
A group of scientists say in new research that matching dinosaur tracks found in modern-day Brazil and Cameroon were made 120 million years ago in an area that once connected the two continents.
When did humans get to South America? This giant shelled mammal fossil may hold clues
A fossil of an armadillo-like mammal appears to bear cut marks from butchering by humans, suggesting people were living in South America at least 20,000 years ago, even earlier than once thought.
In Lebanon, the 'Amber Man' digs up golden time capsules from the age of the dinosaurs
When dinosaurs reigned some 130 million years ago, flowering plants were taking over the world. That change is sealed in ancient amber specimens on the slopes of Lebanon that Danny Azar knows so well.
Largest-ever marine reptile found with help from an 11-year-old girl
A father and daughter discovered fossil remnants of a giant ichthyosaur that scientists say may have been the largest-known marine reptile to ever swim the seas.
Paleontologists discover a 240-million-year-old 'dragon' fossil in full
Dinocephalosaurus orientalis's snake-like body was 16 feet long and lived in Triassic China. The newly revealed specimen allows scientists to depict the creature in full for the first time.
That giant extinct shark, Megalodon? Maybe it wasn't so mega
The ancient extinct shark that starred in the film The Meg is thought to be the largest shark that ever swam the Earth. But there's debate over what it really looked like.
This fossil of a mammal biting a dinosaur captures a death battle's final moments
A 125-million-year-old fossil from the early Cretaceous shows the skeletons of a smaller mammal biting a larger horned dinosaur, suggesting a much more complex ancient food web.
A construction project caused damage to 100-million-year-old dinosaur tracks in Utah
A project to replace the boardwalk at the Mill Canyon Dinosaur Tracksite in Moah, Utah, cause minor damage to tracks and trace fossils at the site, a Bureau of Land Management paleontologist found.
Ancient Footprints Suggest Humans Lived In The Americas Earlier Than Once Thought
A team of scientists dated the footprints along an extinct lake bed in New Mexico and found them to be between 21,000 and 23,000 years old — far older than reliable evidence has suggested to date.