Tag: "ancient" at biology news
Duke Geologists Explore Alternative Way To Measure Ice Age Sea Bottom Temperatures
...cods seem to provide more reliable measurements of ancient
water temperatures than the usual indicators. The usual method involves comparing the ratios of two forms -- or isotopes -- of oxygen present in other fossilized shell-bearing marine organisms known as foraminifera. But the Science article said thos...
Cornell Researchers Precisely Date Wood From Ancient Tomb In Turkey
...ing the history of the Greeks, Egyptians and other ancient
civilizations. Reporting in the journal Nature (Ju...nd moisture) from the wood and charcoal remains of ancient
tombs, gates and buildings unearthed at these sites. Using dendrochronology techniques they have per...
Changing Continental Runoff Patterns Could Change Ocean Circulation
...ologist who is studying circulation models of the ancient
oceans. "We have already seen some of the consequences of changing surface waterways," says Karen L. Bice, graduate student in geosciences. "The Colorado River barely flows to the ocean and the Aral Sea is drying up. We do have the capacity to...
North America Hit Hard By Asteroid Strike In Yucatan 65 Million Years Ago
...the corridor of incineration. For example, several ancient
evergreen treesfound in North America before the impact, but not after, still grow in parts ofAustralia and South America. Modern relatives of these trees, often called"primitive conifers," include the Norfolk Island pine, Chilean monkey puzzleand Wo...
Where Fossils Fear To Tread: Scientists Follow Genes To An Ancient Ancestor
...d others are now finding powerful evidence that an ancient
common ancestor - a worm-like animal from which most of world's animals subsequently derived - invented a set of body-building genetic machinery so successful and malleable that it has survived to this day. "This is stunning," said Carroll. ...
Research Team Discovers Key Gene For Telomerase Enzyme In Humans
...ar, indicatingtelomerase was first developed by an ancient
organism and subsequentlyinherited by all eukaryotes -- organisms whose cells have a separatenucleus and cytoplasm, including humans. "It means that studies on simple organisms like yeast are relevantto the human enzyme," said Cech. T...
Fossils Show British Columbia Was Once 2,000 Miles South
...olumbia coast were the actual relic of the Earth's ancient
magneticfield. As the layered, or sedimentary, roc...come remagnetized,leaving no trace of the earlier, ancient
magnetic field. So those BritishColumbia rocks may not have moved north, but simply been remagnetize...
Colorado State Anthropologist Finds Fossil Treasures In Africa
...d the jawbone of a juvenile primate believed to be ancient
ancestors of present-day baboons. The vast collection of fossils is one of the few uncovered in Botswana and contains well-preserved specimens of small mammals thatmay have roamed the earth sometime between 100,000 and 3 million years ago. Most like...
Limits Of Life On Earth: Are They The Key To Life On Other Planets?
...any tons per square inch. How does one study the ancient
climate of Mars? James Kasting of Pennsylvania State University hopes to look back through time and see what the paleoclimate on Mars was like. Early Mars appears to have had a warm and wet climate, but existing climate models have been unable to ...
UC Geologist "Flip-Flops" On Understanding Of Crinoid Life Style
...When some scientists first floated the idea thatan ancient
crinoid called Uintacrinus, could float on the top ofthe sea, other scientists were skeptical. Modern day relativessuch as sea stars all live on the ocean bottom in tightly packedcolonies. David Meyer, a professor of geology at the University ofCinci...
Geologist Finds Evidence Supporting Mysterious Ancient Sea
... in Salt Lake City, Huff willpresent evidence from ancient
volcanic ash beds which he believesdemonstrates a ... apart, theocean would have filled the gap between ancient
continents. There are three basic tools geologists have to determine howthe ancient
continents were ...
10,000-Year-Old Clues Suggest Future Forest Changes
...tions for the province and its economy. During the ancient
warming period, forests on the south coast had more abundant Douglas fir, alder and bracken ferns than today. "All three species growafter a severe disturbance such as fire. We have found a large amount of charcoal in the lake bottoms dating to that ...
Skull Of Refrigerator-Size Ancient Armadillo Finds A Home At UF
...os that subsist on termites, ants and beetles, the ancient
ones, weighing as much as 600 pounds, likely needed more substantial fare to survive, he said. Unfused limb bones indicate the specimen was a juvenile, which may give clues about the armadillo's growth sequence, McCarty said. "We don't know m...
Ancient Greek Text Shows Musical View Of Pregnancy According To Translation By University Of Cincinnati Professor
CINCINNATI, Ohio -- An ancient
Greek medical text edited andtranslated for the fi...sics Holt Parker demonstrates onceagain how little ancient
Greeks knew about pregnancy. Today, knowledge about conception and birth is so advanced,we're accust...
New Study Shows Dinosaurs From Gobi Desert Site Killed In Sudden "Sand Slides" Falling From Dunes - Study Also Reports First Dinosaur Tracks From Gobi
...nuary issue ofGeology that the dinosaurs and other ancient
creatures from the Gobi Desert'srichest fossil sit... clay in the Nebraska dunes (and presumably in the ancient
Gobi dunes)accumulates because the dunes are stabilized by vegetation and so do notactively migrate....
American Museum Of Natural History Researchers Announce Discovery Of Oldest Known Fossil Ants - 92-Million-Year-Old Fossils Found In New Jersey Amber
... specimens are 50million years older than the most ancient
fossils that were clearlyrecognized as ants; the f...amberresolves the debate over the identity of this ancient
insect.Of the remaining fossil ants, two of the males are a new species ofBaikuris (which previously...
NIAID Doctor Successfully Treats Longest Case Of Malaria Infection On Record
...h-tech medicine can shed light even on ancient
syndromes," says Joseph M. Vinetz, M.D., a postdoc... hours, a pattern of fever known since ancient
times as specific to malaria. Although these symptoms spontaneously resolved after she d...
New Dinosaur Finds In Antarctica Paint Fuller Picture Of Past Ecosystem
...d dinosaur, along withremains of Antarctica's most ancient
bird and an array of giant marine reptiles, on Veg...foot bone from what appears to beAntarctica's most ancient
bird yet found. Also collected were numerous partial skeletons ofgigantic marine reptiles called ple...
Three-Day Treatment Cures Decades-Old Case Of Malaria
...ackling difficult research problems,noted that the ancient
Greek physician Hippocrates characterized quartan fevers as the mildest fevers. "He was right then and he was right now," Vinetz says of his patient. Greece has been free of malaria since about 1950, so the patient, who hadnever left the countr...
Biologists Get First Look At DNA-Protein Binding Structure In An Archaeon
...tified the binding structure of DNA and protein in ancient
organisms -- hyperthermophilic archaeons -- pulled...search for basic hints of how DNA was organized in ancient
times. By learning the structure of DNA-protein binding, Wang said, scientists may beable to obtain...
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