A predatory dinosaur with bony bumps on its arms and a strange hump on its back provides evidence that feathers began to appear earlier than researchers thought, according to a report in Nature today.
The new species, named Concavenator corcovatus, was about 4 metres long from nose to tail and lived during the Early Cretaceous period, about 130 million years ago.
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Robotics engineer Stephen Roberts was taking his lunch at Somerville College at the University of Oxford, in England, when the conversation turned to chicken. It wasn’t the food, though. His dining companion was animal welfare specialist Marian Dawkins, and she thought that the pattern-recognition technology Roberts was explaining might help identify misbehaving hens. Continue reading When Chickens Attack→
This past spring’s eruption of the Eyjafjallajökull volcano in Iceland was a nightmare for travelers, but it gave scientists in Europe unprecedented access to a complex eruption right in their backyard. Old workhorses of volcanology–seismometers and GPS sensors, which detect movement of the ground–first picked up Eyjafjallajökull’s stirrings in early January. (For the record: The name is pronounced “AY-yah-fyah-lah-YOH-kuul.”) But when the volcano turned volatile in mid-April, scientists took to the skies, enlisting specially equipped planes to study the eruption and its effects on the overlying glacier. Continue reading Iceland’s Monster Bares Its Heart→
When a new species comes to light, its effect on the arrangement of its family tree might be better measured by statistics than by headlines. In a study of primates and flightless dinosaurs, researchers at Bristol University, UK, have found that the likelihood of any given find shaking up the family tree depends on how complete that tree was to begin with.
“What we’ve done is look at the two most intensively studied groups,” Tarver says, and highlighted differences between the relatively stable catarrhine family tree, and the less certain family history of the dinosaurs. He says that statistical analysis could help to indicate which areas in a given family tree are already well-sampled and which might yet reveal more influential finds.
See the rest of this news story on Nature News [html] [pdf]
Journalist covering global development by way of science and technology.
A predatory dinosaur with bony bumps on its arms and a strange hump on its back provides evidence that feathers began to appear earlier than researchers thought, according to a report in Nature today.
