Tag Archives: researchers

A team of paleontologists has digitally reconstructed the facial skeleton and brain endocast of Ichthyornis dispar, a toothed stem bird that lived in North America during the Late Cretaceous epoch and has traditionally been considered the nearest known well-understood relative of living birds. The ancestors of living birds had a …

A team of paleontologists has digitally reconstructed the facial skeleton and brain endocast of Ichthyornis dispar, a toothed stem bird that lived in North America during the Late Cretaceous epoch and has traditionally been considered the nearest known well-understood relative of living birds. The ancestors of living birds had a …

An acoustic amplifier developed by Sandia National Laboratories researchers measures 0.5 mm2 (0.0008 square inches), and is more than 10 times more effective than the earlier versions. The acousto-electric chip includes a radio-frequency amplifier, circulator and filter; SEM image shows details of the amplifier. Image credit: Bret Latter / Matt …

Humans have been grafting plants onto other plants for thousands of years, but only in the last few generations have we understood the genetic implications of the technique. Researchers from Penn State and the University of Florida partnered with a Nebraska startup to combine genetically “stressed” roots with regular tomato …

An international team of scientists has studied both the water and organic contents from a dust particle recovered from the surface of the near-Earth S-type asteroid 25143 Itokawa by JAXA’s Hayabusa mission, which was the first mission that brought pristine asteroidal materials to Earth. The S-type asteroid Itokawa. Image credit: …

Hurricanes in the Earth’s low atmosphere are well known; however, disturbances resembling hurricanes had never before been detected in the upper atmosphere. An artist’s impression of a space hurricane. Image credit: Qing-He Zhang, Shandong University. “Until now, it was uncertain that space plasma hurricanes even existed, so to prove this …

Scientists have extracted and sequenced mitochondrial DNA from a partial femur of an ancient dog that lived in Alaska 10,150 years ago. Their results, published in the Proceedings of the Royal Society B, demonstrate that the animal belonged to a lineage of dogs that diverged from Siberian dogs around 16,700 …

A team of geobiologists from Germany has found biologically-relevant primordial organic molecules and gases in fluid inclusions trapped in 3.5-billion-year-old barites from the Dresser mine, Marble Bar, Australia. Location of the Dresser mine in Western Australia (a) and black barite associated with originally sulfidic stromatolites at the sampling site (b) …

An international team of scientists has sequenced and analyzed DNA from three mammoth specimens, two of which are more than one million years old. The results show that two distinct mammoth lineages were present in eastern Siberia during the Early Pleistocene; one of these lineages gave rise to the woolly …

Caffeine consumed during pregnancy can change important brain pathways that could lead to behavioral problems later in life, according to new research from the Del Monte Institute for Neuroscience at the University of Rochester Medical Center. Caffeine is a known neuromodulator that is commonly consumed throughout pregnancy. Image credit: Poohchisa …