214 results
- Humans
Deep African roots for toolmaking method
A method for trimming stone-tool edges appeared 75,000 years ago in southern Africa, archaeologists contend, long before previous evidence of the practice.
- Animals
Back off, extinct moa
A New Zealand tree’s peculiar leaves may have served as defenses against long-gone giant birds.
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Dressing up dinos
Adding soft tissue to bone helps scientists, paleoartists bring ancient creatures to life.
- Paleontology
Bird in the hand
Fossilized fingers strengthen evolutionary link between dinosaurs and avian relatives.
- Life
Dinosaur day care dads
A new study shows some male dinosaurs may have been the primary caretakers of their young.
- Animals
Built for Speed
Animals would prove fierce competitors at the Olympics — if only they would stay in their lanes.
- Physics
Apollo or Manhattan Project: Which Paradigm Fits Energy Better?
A new petition developed to lobby the presidential candidates argues that increased federal investments in basic energy research are essential.
- Chemistry
Drugs on Tap
It's finally time to investigate whether pharmaceuticals in water pose a health risk.
- Computing
Computing Evolution
Scientists sift through genetic data sets to better map twisting branches in the tree of life.
- Humans
Want a Science Debate?
Presidential contenders have been debating a broad range of issues. Science isn't one of them.
- Paleontology
Old Softy: Tyrannosaurus fossil yields flexible tissue
Scientists analyzing fragments of a Tyrannosaurus rex's leg bone have recovered soft, pliable material, including structures that apparently are cells and blood vessels.
- Paleontology
Role of gastroliths in digestion questioned
New analyses of the gastroliths in ostriches are casting doubt on the theory that large, plant-eating dinosaurs swallowed stones to grind up tough vegetation and thereby aid their digestion.
