Print
Email
Bookmark
RSSBrowse News Stories
253 to 264 of 1,093 stories
view headlines only
-
Ancient Retroviruses Spurred Evolution Of Gene Regulatory Networks In Humans And Other Primates
November 15, 2007 — Ancient retroviruses -- distant relatives of the human immunodeficiency virus -- helped a gene called p53 become an important "master gene regulator" in primates, according to a new ... > full story -
Digging For Dinosaurs In Outback Australia
November 15, 2007 — Outback Queensland has become the focus of an international research project that is helping to decipher the evolution of Australian dinosaurs and their relationships to those of other southern ... > full story -
Parasites Might Spur Evolution Of Strange Amphibian Breeding Habits
November 15, 2007 — Parasites can decimate amphibian populations, but one researcher believes they might also play a role in spurring the evolution of new and sometimes bizarre breeding ... > full story -
Changing Environment Organizes Genetic Structure
November 14, 2007 — What is the fundamental creative force behind life on Earth? It's a question that has vexed mankind for millennia, and thanks to theory and almost a year's worth of number-crunching on a ... > full story -
Tool-wielding Chimps Provide A Glimpse Of Early Human Behavior
November 13, 2007 — Chimpanzees inhabiting a harsh savanna environment and using bark and stick tools to exploit an underground food resource are giving scientists new insights to the behaviors of the earliest hominids ... > full story -
Exceptions Prove Rule Of Tropical Importance In Biodiversity
November 12, 2007 — Even a group of shellfish that appear to violate the overarching pattern of global biodiversity actually follows the same biological rules as other marine organisms, confirming a general theory for ... > full story -
When Animals Evolve On Islands, Size Doesn't Matter
November 8, 2007 — A theory explaining the evolution of giant rodents, miniature elephants, and even miniature humans on islands has been called into question by new research. The new study refutes the 'island rule' ... > full story -
Evolution: When Are Genes 'Adventurous' And When Are They Conservative?
November 8, 2007 — Taking a chance on an experiment -- this is one of the impulses that drive evolution. Living cells are, from this angle, great subjects for experimentation: Changes in one molecule can have all sorts ... > full story -
To Fight Disease, Animals -- Like Plants -- Can Tolerate Parasites
November 7, 2007 — Animals, like plants, can build tolerance to infections at a genetic level, and these findings could provide a better understanding of the epidemiology and evolution of infectious disease, according ... > full story -
Earliest Birds Acted More Like Turkeys Than Common Cuckoos
November 6, 2007 — The earliest birds acted more like turkeys than common cuckoos, according to a new article. By comparing the claw curvatures of ancient and modern birds, the researchers provide new evidence that the ... > full story -
Burrowing Mammals Dig For A Living, But How Do They Do That?
November 4, 2007 — Next time you see a mole digging in tree-root-filled soil in search of supper, take a moment to ponder the mammal's humerus bones. When seen in the lab, they are nothing like the long upper arm bones ... > full story -
Fossil Record Reveals Elusive Jellyfish More Than 500 Million Years Old
November 2, 2007 — Using recently discovered 'fossil snapshots' found in rocks more than 500 million years old, researchers have described the oldest definitive jellyfish ever found. The researchers describe four types ... > full story
Search ScienceDaily
Number of stories in archives: 61,438
