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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 -
Nano-assembly Mimics Origin Of Life? Molecules Organize Themselves Into Patterns
November 1, 2007 — The automatic molecular assembly and selection steps exhibited by the molecules, which start as random mixtures, demonstrates a fundamental step in the evolution of life. The organization is ... > full story -
How Did Chemical Constituents Essential To Life Arise On Primitive Earth?
October 31, 2007 — Chemists now proposed the first detailed, feasible mechanism to explain how adenine, one of the four building blocks of DNA, might be built up from the combination of five cyanide molecules. The ... > full story -
Fossilized Body Imprints Of Amphibians Found In 330 Million-year-old Rocks
October 30, 2007 — Unprecedented fossilized body imprints of amphibians have been discovered in 330 million-year-old rocks from Pennsylvania. The imprints show the unmistakably webbed feet and bodies of three ... > full story -
Longest Living Animal? Clam -- 400 Years Old -- Found In Icelandic Waters
October 29, 2007 — A clam dredged from Icelandic waters had lived for 400 years. Is this the longest-lived animal known to science? Can you imagine living for four centuries? Scientists believe they have found an ... > full story -
In-group Altruism And Hostility Toward Outsiders Evolved Together
October 29, 2007 — Altruistic and warlike aspects of human nature may have a common origin. Altruism--benefiting fellow group members at a cost to oneself--and parochialism--hostility toward individuals not of one's ... > full story -
Predators And Parasites May Increase Evolutionary Stability
October 28, 2007 — A new study explores the role of natural enemies, such as predators and parasites, for mixed mating, a reproductive strategy in which hermaphroditic plants and animals reproduce through both self- ... > full story
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