Marsupial genome reveals insights into mammalian evolution
...o found data supporting the idea that there was an ancient relationship between the MHC and another critical component of the immune system, the natural killer complex (NKC), which contains natural killer (NK) cell receptor loci. This "immune supercomplex," which no longer exists in modern genomes, performe...Inside rocks, implications for finding life on Mars
... Schopf and colleagues have produced 3-D images of ancient fossils -- 650 million to 850 million years old --...hich he reports confocal microscopy results of the ancient fossils. (He published ancient Raman spectroscopy 3-D images of ancient fossils in 2005 in the journ...Virginia Tech researcher examining malignant melanoma in horses
...is research on frankincense oil suggests that this ancient medicine may have significant modern uses for chemotherapy of non-resectable malignancies," said Robertson, a professor in the Department of Biomedical Sciences and Pathobiology. "This research showed that equine melanomas respond to this therapy." ...Evolution mystery: Spider venom and bacteria share same toxin
...e University of Arizona have found evidence for an ancient transfer of a toxin between ancestors of two very ...puzzle with evidence from living descendants of an ancient ancestor," said Greta Binford, assistant professor of biology at Lewis & Clark. Her coresearcher on ...Finding life on Mars and outer space begins by examining Earth's inner space
...s that might harbor fossil signatures preserved in ancient rocks, or living organisms that might be hiding in safe places beneath the surface where water could be abundant. The exploration for a Martian fossil record is being approached in the same way paleontologists explored for the earliest fossils of li...Study finds 60 new genes controlled by DNA snippet
Researchers worldwide are seeking to define ancient sections of our genetic code that may soon be as important to medical science as genes. A new wave of research is concerned with, not how genes work, but how small regulatory DNA sequences tell genes where, when and to what degree to "turn on." As pa...UC Riverside researchers identify clay as major contributor to oxygen that enabled early animal life
...ambrian, the researchers studied thick sections of ancient sedimentary rocks in Australia, China and Scandina... we are saying that it should be largely absent in ancient rocks. And this is just what one finds." The study attracted the attention of the National Aeronauti......recently discovered a new source of well-preserved ancient DNA in fossil bones. Their findings were published...ssess such crystal structures containing preserved ancient DNA. After treating two modern and six fossil animal bones with the sodium hypo-chlorite, they foun...One fish, two fish: New MIT sensor improves fish counts
... - they wanted to see if their device could locate ancient riverbeds under the ocean floor. But when their reconnaissance images did not match the riverbeds, the researchers went back with a new approach, and determined that they were seeing fish - tens of millions of fish. This marks the first time scientis...UCI to study mitochondrial role in diabetes, obesity and cardiovascular disease
...mitochondrial DNA blueprints were critical for our ancient ancestors to adapt to their to colder northern latitudes as they moved out of Africa into temperate and arctic Eurasia. Today the same adaptive variants are affecting how individuals manage and utilize the calories in our food, thus affecting predisp......earch pathway. "It's like opening an chamber in an ancient pyramid, because no one had ever seen inside sperm cells to measure all the currents that control their activity," he said. "We are already measuring many of these currents and beginning to answer questions about what they are and what they do." Fur...FSU biologist says new dinosaur is oldest cousin of Tyrannosaurus rex
... paleobiologist Gregory M. Erickson sliced up some ancient dinosaur bones uncovered in China to help an international team of scientists identify a new genus and species. Despite striking skeletal differences and only subtle similarities, the FSU researcher determined that the two remarkably intact specimens...Early California: A killing field
...ingly picking through 5,736 bird bones found in an ancient Native American garbage dump on the shores of San ...ed significant population declines at the hands of ancient Indian hunters. Biologists long assumed that the abundant wildlife in California some 200 years ago...Most cave art the work of teens, not shamans
... a fascinating and controversial interpretation of ancient cave art in his new book "The Nature of Paleolithic Art." This ancient art was made during the late Pleistocene, about 10,000 to 35,000 years ago, and has typically been t...Phytoplankton bounce back from abrupt climate change
...Science. "Although we have a poor understanding of ancient plankton ecology, it appears that extinctions were selective and targeted more specialized and often deeper-dwelling species." For example, about 55 million years ago there was a warming event that geologists call the Paleocene/Eocene thermal maximum...Next good dinosaur news likely to come from small packages
...dge technology used to divine new information from ancient bits of bone and tissue. One of the field's hottest topics is whether proteins and DNA survive the test of time. Ostrom is putting her bet on proteins and is working with an international team from Michigan, the Smithsonian and York and Cardiff Un...Ancient greenhouse emissionspossible lessons for modern climate
...geologic past, searching for possible lessons from ancient episodes of warming driven by natural processes which also might include emission of greenhouse gases. The research, discussed in a symposium at the 2006 Annual Meeting of the American Association for the Advancement of Science (AAAS) in St. Louis, s...There's something fishy about human brain evolution
...ionary growth of the human brain. Instead, imagine ancient hominid children chasing frogs. Not for fun, but f...historic savannahs or forests, argues Dr. Cunnane, ancient shoreline environments provided a year-round, accessible and rich food supply. Such an environment w...Oceans may soon be more corrosive than when the dinosaurs died
...searchers do not yet know exactly what caused this ancient acidification, it was directly related to the cataclysm that wiped out the giant beasts. The pattern of extinction in the ocean is consistent with ocean acidification--the fossil record reveals a precipitous drop in the number of species with calcium...... lab into undergraduate science classrooms. In the ancient world, B12 was probably catalyzing reactions before cells even existed. Now, all animals need B12 to help make the building blocks of DNA, and children need enough of the vitamin to help their brain develop normally. Most people consume enough B12 th...