At Life's Most Sensitive Stage, Embryos Cope With Stress
...e the fatinnkeeper worm, which survives in coastal mud flats, resisting natural andman-made toxins washed... worm uses to survive in some of the most polluted mud flats along thePacific coast. At the AAAS meeting, he presented data showing that the worm'sembryos ...Biologists Get First Look At DNA-Protein Binding Structure In An Archaeon
...ophilic archaeons -- pulled from the fiery, acidic mud of Yellowstone National Park. Their findings, reported in the March 12 issue of the journal Nature, shed light on how proteins attach to DNA to stabilize and protect it in harsh environments. "The DNA has to store the genomic information, so the sha...Mussels Muscling In, Crabs Pinching Native Species
... ships take on water for ballast, they take on the mud and sediment from othercountries. When they dump the sediment and water close to home, they also dumpall the creatures living there. The problem of how to kill off the invaderspecies while leaving the native species unharmed has perplexed scientists....Georgia Scientists Study Salt Marsh To Understand Global Warming
...Large populations of fiddler crabs thatinhabit the mud flats in the salt marsh can greatly enhance nutrientcycles in the area, Kostka said. Their burrows, which can extend 20centimeters into the soil, allow saltwater to infiltrate the mud, whichin turn introduces oxygen and other nutrients into the sedi...Did Fur Trappers Trigger Landscape Changes?
..., 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 learn how na...Scientist Finds Asteroid Fossil That May Have Caused Global Dinosaur Extinction
...e Cretaceous and Tertiary eras. Hidden in mud and buried beneath the Pacific Ocean for 65 million years,the fossil is no longer composed of all of its original minerals, yet hasretained its original shape and texture. "The fossil is a record of the original rock," said Richard Lane,progr......fe's smallest systems. Purple bacteria live inthe mud below surface plants. They are scavengers, feeding on bits, or photons,of sunlight that are not claimed by the plants. In fact, Schulten said, they"feed" on only two types of photons -- one with a wavelength of 500 nanometersand another of 800 nm -...Fossil Footprints Show Foot-Movement Similarity In Dinosaurs And Birds
...mensions when the meat eatersslopped through mud 210 million years ago. Although the footprints are... Scores of theropod footprints preserved in mud of variable consistencywere discovered by the researchers while they collected fossils along r...Trouble for the world's turtles
...mented extinction of justone subspecies -- a small mud turtle from Mexico. However, all sea turtles,most remaining tortoises, and many freshwater turtles are endangered orthreatened and require urgent conservation action. Some 12 turtle species areconsidered critically endangered, facing a high risk of ...AGU 1999 Fall Meeting -- Information for media representatives
...rticipants may assist them in retrieving water and mud samples. These will be analyzed on board for the presence of invasive species. Back at the Marine Facility, we will see equipment that has mapped the floor of the Bay and Pacific Ocean to a depth of five miles. We then motor to Menlo Park, where ...1999 Fall Meeting: Press conferences and special events
...ruption, unleashing massive avalanches of rock and mud that can devastate entire cities. Scientists are studying how to assess the risk factor for catastrophic collapse of specific volcanoes and are devising mitigation strategies. FAST Tuesday afternoon. This will be the first ever press conference on ...Fall Meeting: updated press conferences and special events
...ruption, unleashing massive avalanches of rock and mud that can devastate entire cities. Scientists are studying how to assess the risk factor for catastrophic collapse of specific volcanoes in Japan, Latin America, Indonesia, and the United States and are devising mitigation strategies. Panel: Robert J....Research highlights from Pacific Northwest National Laboratory
...e present research at East Sha Chau's contaminated mud disposal site began in 1998 and will continue thro...ermine the value and potential use of contaminated mud burial in confined aquatic disposal sites. Chemical management made easier A chemical tracking...Bacterial strain may help clean up harmful industrial waste
... 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 are involved, and...DNA test solving Chesapeake's toxic mysteries
...UMBI) reports that the test, applied to samples of mud or water, rapidly identifies Pfiesteria piscicida. In 1997, the microbe was linked with major fish kills in three Maryland rivers as well as previous fish kills in North Carolina. In addition, watermen near the fish kills and laboratory workers handl...Vanderbilt archaeological team unearths buried Maya royal palace
...id limestone masonry, rather than the concrete and mud typical of other sites. As a result, it did not collapse the way that other Maya structures did when enveloped by jungle. The preliminary survey of the palace found that it contains a densely packed labyrinth of hundreds of small rooms with extravaga......ted density of 50 clams per square meter. "The mud flats of the Colorado River Delta experience one of the highest tidal ranges in the world -- up to 10 meters (~33 feet). In the past, this macro-tidal system was greatly influenced by the river, but now, at its mouth, the Colorado is more like a chan...Analysis of impact studies reveals how bottom fishing affects seafloor denizens
...ats. Surprisingly, the least impact is observed in mud habitats, not sand. The studies revealed that beam trawling in sand habitats has less impact than the other gear types and other habitats. As expected, largest negative impacts occur in biogenic habitats, which are largely composed of relatively slow...University of Cincinnati researchers track climate changes in Arctic thaw lakes
...ation. They have trudged through rain, cold, snow, mud and water in two to three field trips per year in 2000 and 2001. In April 2001, the team drilled core samples using an 800-pound drill called a "Big Beaver." Samples taken earlier reached only to 18 inches, while the new mechanical drill reached seve...