Paleontology
- Paleontology
Duck-billed dinosaurs roamed the Arctic in herds
Young and old duck-billed dinosaurs lived together in herds in the Arctic, tracks preserved in Alaska indicate.
By Meghan Rosen - Paleontology
Fossils reveal largest airborne bird
Despite its massive size, an extinct bird may have been an efficient glider.
- Paleontology
Flightless dino-bird wore full-body feathers
Recently unearthed Archaeopteryx fossil sports full coat of feathers, suggesting feather evolution was more complex than previously thought.
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- Paleontology
‘Dinosaurs Without Bones’ gives glimpse of long-gone life
Ichnologist Anthony J. Martin explains his research piecing together dinosaurs’ lives from footprints and other traces.
By Sid Perkins - Life
Dinos straddled line between cold- and warm-blooded
Tyrannosaurus rex and other dinosaurs straddled line between cold- and warm-blood, a new analysis finds.
By Meghan Rosen - Paleontology
Ancient fish may have set stage for jaws
A fish called Metaspriggina walcotti, which lived roughly 500 million years ago, had body parts that may have later evolved into jaws.
- Paleontology
Preserved pterosaur eggs hint at reptile’s social life
The first 3-D pterosaur eggs, which were found in China, suggest that the flying reptiles laid eggs together.
By Meghan Rosen - Paleontology
Age and origin of Earth’s early fossils questioned
Some of Earth's earliest trace fossils may not be fossils at all, a new study argues.
- Paleontology
Fragments of long-bodied dino found in Argentina
Named Leinkupal laticauda, the new species dino probably lived into the early Cretaceous period, which began roughly 145 million years ago.
- Paleontology
Giant 17-million-year-old fossil sperm found
Giant sperm have been found in 17-million-year-old fossilized mussel shrimp. The specimens, collected in Queensland, Australia, sport the oldest petrified sex cells on record.
- Paleontology
Asteroid strike spurred quick chill that led to dinosaurs’ demise
After an asteroid struck Earth 66 million years ago, ocean temperatures fell 2 degrees Celsius, leading to mass extinction of dinosaurs and other life.