Paleontology
- Paleontology
DNA suggests North American mammoth species interbred
Supposedly separate types may really have been one.
- Paleontology
Tooth stranger than fiction
A mammal fossil unearthed in South America resembles ‘Ice Age’ saber-toothed squirrel.
- Paleontology
Oxygen blew up ancient amoebas
Single-celled creatures' size spiked as oxygen levels rose.
- Paleontology
Acidifying oceans helped fuel mass extinction
The great die-off 250 million years ago could trace in part to hostile water conditions, a modeling study suggests.
- Paleontology
Sea monsters made great mothers
Fossilized plesiosaur with fetus suggests ancient reptiles cared for their young.
- Paleontology
Dinosaurs died of rickets
After more than 80 years, a theory that too little vitamin D led to the demise of the dinos still awaits a shred of evidence.
- Paleontology
Big dinosaurs kept their cool
Body temperature of long-gone beasts resembled that of mammals, study of fossil teeth suggests.
- Paleontology
Supersized superbunny
Fossils reveal a non-hopping giant rabbit that lived on the island of Minorca 5 million years ago.
- Paleontology
New dinosaur species is titanic
Titanoceratops may be the oldest known member of the triceratops group.
- Paleontology
Early meat-eating dinosaur unearthed
Pint-sized, two-legged runner from Argentina dates back to the dawn of the dinos, 230 million years ago.
- Paleontology
An ammonite’s last supper
A detailed X-ray image of a fossil reveals an ancient marine creature’s diet.
- Paleontology
Oceans may have poisoned early animals
High sulfur and low oxygen produced a deadly brew nearly 500 million years ago that apparently stalled a burst of evolutionary change.
