1,962 results
1,962 results for: Dinosaurs
- Paleontology
Plenty of dinosaurs yet to be found
Despite a dramatic surge in dinosaur discoveries in recent years, paleontologists won't soon run out of interesting new fossils to unearth, a new analysis suggests.
- Paleontology
Big bird terrorized South America
Researchers in Argentina have discovered fossils that may represent the heftiest flightless bird to ever have roamed the planet.
- Paleontology
Reptilian Repast: Ancient mammals preyed on young dinosaurs
Two nearly complete sets of fossilized remains from 130-million-year-old rocks are revealing fresh details about the size and dietary habits of ancient mammals, hinting that some of these creatures were large enough to feast on small dinosaurs.
- Paleontology
Some plesiosaurs went for clams
The fossils of plesiosaurs recently unearthed in Australia suggest that the long-necked, aquatic reptiles had a more varied diet than scientists had previously suspected.
- Humans
Science News of the Year 2006
A review of important scientific achievements reported in Science News during the year 2006.
- Humans
Letters from the March 12, 2005, issue of Science News
Cheaters like us? The model for the emergence of a population of “cheaters” out of a population of “cooperators” described in “When Laziness Pays: Math explains how cooperation and cheating evolve” (SN: 1/15/05, p. 35) gives a fresh viewpoint on existing ecosystems—and much more. Might the evolution of asymmetric modern sex from symmetric DNA exchange […]
- Earth
Changes in the Air
Changes in the atmospheric concentration of oxygen through geologic time, some gradual and some drastic, have strongly shaped evolution among many types of creatures.
- Humans
To Leap or Not to Leap
Scientists are debating whether to continue the practice of occasionally inserting leap seconds in order to keep official, atomic-based time in sync with time based on Earth's rotation.
- Tech
Illuminating Changes
Indoor lighting is undergoing a dramatic metamorphosis toward energy-conserving systems that rely on solid-state technologies.
- 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.
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19504
I was disappointed in news coverage of this dinosaur find in China. Science News and others ran an illustration with an obvious mistake. Unless the newly discovered mammal, Repenomamus giganticus, and its smaller cousin, Repenomamus robustus, were unique animals, they did not have legs that emerged from their sides giving them a sprawling, reptilian body […]
- Paleontology
Dino Dwarf: Island living may have led to ancient downsizing
Fossils unearthed at a German quarry hint that members of one species of dinosaur that lived in the region about 152 million years ago evolved to be abnormally small because of the constraints of its island ecosystem.
