22/12/2005

Ancient Jawless Vertebrates Used Novel Immune Responses

Researchers recently discovered that the sea lamprey, a modern representative of ancient jawless vertebrates, fights invading pathogens by generating up to 100 trillion unique receptors. These receptors, referred to as VLRs, ...

Scientists stymied by inch-long fish

Scientists say they are unable to explain the steady declined in the number of pupfish -- an endangered species that lives only in a Nevada limestone cave.

Revising Earth's early history

Earth's future was determined at birth. Using refined techniques to study rocks, researchers at the Carnegie Institution's Department of Terrestrial Magnetism found that Earth's mantle--the layer between the core and the ...

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