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 HowComYouCom.com Evolution At A Snail's Pace: It's Faster Than You Think - June 5, 2001 By studying different populations of Acanthinucela spirata, a marine gastropod found throughout the rocky coastal regions of California, the researchers discovered that past climatic changes altered the range of the species, which in turn, caused the species' shell shape to evolve. The scientists believe their findings can be applied to other animals, and that any change in an animal's environment or range, whether caused by climate changes, deforestation or any other means of relocation, could bring about the same results. MORE >> Discovery Of "Tidal Giant" -- A New Egyptian Dinosaur -- Reported In Science - June 1, 2001 The partial skeleton of a massive sauropod dinosaur, unearthed at an Egyptian site that its discoverers call "dinosaur heaven," makes its debut in the 1 June issue of the international journal Science. Dubbed Paralititan stromeri, the dinosaur is one of the largest ever discovered from the Cretaceous period (about 146 to 65 million years ago) in Africa, and may be the second most massive dinosaur ever found. MORE >> Brain's Visual Cortex Doesn't "Tell" All It Knows - May 31, 2001 New research by scientists at the University of Minnesota and the University of California, San Diego has shown that neurons in the human visual cortex, a brain center that processes visual information, can respond to patterns of lines too fine for subjects to resolve. The work reveals that some types of visual information, while not consciously perceived, are still conveyed closer to the brain's center(s) of consciousness than was previously thought. MORE >> Researchers Discover Fossil Of Tiny Mammal From Early Jurassic - May 25, 2001 An international team of researchers led by Carnegie Museum of Natural History Vertebrate Paleontologist Dr. Zhe-Xi Luo has discovered a 195-million-year-old fossil mammal. MORE >> Dust Begets Dust science.nasa.gov - May 23, 2001 Everyone knows that dry weather leads to dusty soils, but new research suggests that dust might in turn lead to dry weather. MORE >> A dietary cost of our appetite for gold Science Org - May 19, 2001 New research indicates that in some regions of the world, the mining of gold produces an unrecognized toxic fallout: fish dinners laced with methylmercury. MORE >> Paleontologists Develop Major New Fossil Database: Preliminary Analysis Questions Reality Of Recent Global Radiation Sciencedaily - May 17, 2001 Since the mid-19th century, scientists have questioned the extent to which the fossil record accurately depicts increases and decreases through time in biodiversity. A new database and analysis now indicates that, if not properly corrected, the fossil may provide a misleading signal of biodiversity changes during important intervals of geological time. MORE >> |
It's true Mr President, the world's hotting up - June 8, 2001 America's leading scientists have told President George Bush that global warming is real - and that the burning of fossil fuel is feeding it. "Greenhouse gases are accumulating in Earth's atmosphere as a result of human activities, causing surface air temperatures and subsurface ocean temperatures to rise," their report said. MORE >> Fossil children may harbor clues to humanity's origins Science News June 2, 2001 
A Neandertal toddler's skull lies above the rest of its partial remains. A team of Japanese and Syrian researchers excavated these fossils at Syria's Dederiyah Cave in 1997 and 1998. It's not known if the child was a girl or a boy. Excavations at this approximately 60,000-year-old site yielded the partial remains of one small child and the nearly complete skeleton of another. Researchers estimate that both died at around age 2. MORE >>New Class of Victims In AIDS Evolution Newsday May 30, 2001 "What we have seen is that the pandemic of AIDS is most dramatically evident in communities of color, especially among women and young people,” said Democratic City Councilman Bill Perkins, whose Harlem district has been particularly hard hit by the disease. "The epidemic has created a new class of victims.” Last year, the city recorded 4,013 new AIDS cases: 746 of them white, 1,168 Hispanic, 1,919 black and 180 other. Of those, 1,175 were women, according to statistics from the city's Health Department. In the state, people of color now make up 83.3 percent of new AIDS cases and 76.5 percent of all people living with AIDS, according to the Bureau of HIV/AIDS Epidemiology of the New York State Department of Health. MORE >> Visualizing Protein Synthesis In Living Neurons hhmi.org May 25, 2001 Over the last two decades, neuroscientists have been building the argument, buttressed by data from many experiments, that dendrites - the fine fibers that extend from neurons - can synthesize proteins. If dendrites can synthesize proteins, they may also have the capacity to modulate the strength of connections between neurons and ultimately influence neural activities, including learning and memory. MORE >> Clone Problems Identified ScienceaGoGo May 22, 2001 Despite technological advances, two major problems continue to plague the field of animal cloning: few clones survive to term and those that do are grotesquely large. The root of these problems has remained a mystery until now. MORE >> Almost 30 years after the Vietnam war, the legacy of Agent Orange appears to be worsening New Scientist Agent Orange was contaminated by TCDD, a particularly potent dioxin. Dioxins are classified as carcinogens. They also impair the immune system, increase cases of spontaneous abortion, and reduce IQ in children. Arnold Schecter of the University of Texas Southwestern Medical Centre says TCDD that seeped into soil and river beds is becoming concentrated in fish and water. In some parts of Vietnam, it is accumulating in children born after the end of the war. MORE >> |
Opinions divided on environment report - June 7, 2001 The NAS report, requested by President Bush to help clarify earlier findings of a United Nations committee, was released Wednesday. It essentially confirmed that global temperatures are rising but failed to establish conclusively a link between that trend and human activity. The report stated climate changes over the past several decades "are likely mostly due to human activities" but it did not rule out "that some significant part of those changes are also a reflection of natural variability." MORE >> World's largest flower opens BBC Science - June 5, 2001 One of the world's largest and smelliest flowers is about to bloom in the United States. And, for those with a faint-hearted disposition, it can be viewed from a safe distance - via the internet. A webcam is trained on the plant - the Titan arum, or "corpse flower" - at the University of Wisconsin-Madison Botany Greenhouses. The emerging bloom, which could reach a diameter of more than a metre (four feet), is only the twelfth recorded in the US. Despite the flower's putrid smell, that can be detected from half a mile away, the spectacle usually attracts thousands of curious people. MORE Cosmic Chemistry Gets Creative Science Org - May 19, 2001 There's no shortage of theories for explaining how life could have arisen on Earth, even in the primitive atmosphere now considered likely. MORE Dying comet gives rare view of space ENN - May 19, 2001 Comet Linear, falling toward the sun last summer, peeled off layer after layer, revealing its structure and composition to astronomers watching with some of the world's most powerful telescopes. MORE >> Carbon currency – the credits and debits of carbon emissions trading Science.org - May 18, 2001 Imagine you are a farmer in the Australian wheatbelt. You need to plant trees to arrest salinity, erosion and soil acidification, but you can’t afford to – trees usually don’t earn you money for many years, if ever. Then, along comes a carbon broker. MORE >> Study Cites Origins of Domestic Goats LA Times - May 14, 2001 The first goats were domesticated about 10,000 years ago and that strain was disseminated all around the world, according to a new DNA study by French and Swiss researchers. MORE Bacteria that once infected our chromosomes Why Files - May 17, 2001 It was perfect grist for the Why Files weird-science mill. We're talking about the notion that bacteria that once infected our ancestors stuck their genes into our chromosomes. MORE >> Study Offers Insights Into Evolutionary Origins Of Life Sciencedaily - May 18, 2001 In some of the strongest evidence yet to support the RNA world—an era in early evolution when life forms depended on RNA—scientists at the Whitehead Institute for Biomedical Research have created an RNA catalyst, or a ribozyme, that possesses some of the key properties needed to sustain life in such a world. MORE >> Science Archive >> |
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