Bacterial strain may help clean up harmful industrial waste
...overed the bacterial strain T1 about 10 years ago, digging through the mud at contaminated sites in search of an organism in the natural environment that could break down toluene without oxygen, which is absent in some polluted areas. Coschigano is investigating how T1 metabolizes the substance, what genes a...The evolution of the sex chromosomes: step by step
...ages rather than in a smoothtransition. "By fossil digging on the sex chromosomes, we were able to reconstruct the fourevents that drove sex chromosomes into their distinctive X and Y forms, and todate when these events occurred during evolution," says Lahn. "The farther backin time we look, the more similar...World's Oldest Known Fossil Reptile Nests Discovered In Arizona's Petrified Forest
...ambers contain what appear to bescratch marks from digging activity and egg impressions, although no eggs oreggshells were found. The fossil record for reptiles began in the Pennsylvanian Periodbeginning about 300 million years ago, said Hasiotis and Martin. The oldestprevious evidence for reptile-n...Did Fur Trappers Trigger Landscape Changes?
... beaverpopulation, Hopkinsscientist Grace Brush is digging into the mud beside Baltimore-area streams tofind signs of howhumans changed the ecology of a region once dominated by dense forests andmeanderingwaterways. By studying the pollen, seeds, tiny animals and chemicals preservedin sediment,Brush hopes to...Groundwater Injection Process Filters Out Contaminants
...alled a trench and fill permeable barrier,involves digging trenches to act as barriers. The trenches are filled with ironparticles that react with and filter contaminants. But trenches cannot be dugdeep enough to reach groundwater in many locations, including the Hanford Site. ISRM uses a standard ...UF Researchers: Development Promotes Disease Among Gopher Tortoises
...ds of plants and also to aerate the soil via their digging action," Brown said. Researchers discovered the disease is caused by the same bacteria that decimated the desert tortoise in the American Southwest. The disease has been seen in captive tortoises since the 1950s. The organism that causes it, ...Notre Dame Paleontologist Finds Damage Done To T. rex Skull
...ere found entered the site two weeks ago and began digging up the bones that remained in the ground. The ranchers contend they still own the land, although a title search indicates it now belongs to the U.S. Department of Agriculture's Farm Service Agency. Federal law enforcement officers descended on the si...Largest Tyrannosaur Fossil Unearthed In Montana
...h the fossilswere found entered the site and began digging up the bones that remained in theground, including the skull. Contending they still own the land, they evidentlyplanned to sell the fossil to a private collector. On Sunday (Sept. 14), Federal law-enforcement officers descended on thesite, w......set up a liquid circulation system, which involves digging wells and adding oxygen, either by dissolving oxygen in the water, pumping air directly into the water, or pumping it into the ground. There are a variety of methods we can use." One of the problems with bioremediation is that not many professionals ...