Sizing up evolutionary radiations; by gauging life's diversity from differences in body size and shape rather than number of species, paleontologists are gleaning surprising new insights about adaptive radiations

Article Abstract:

A new way of studying evolutionary radiations is expected to reveal far more insights than traditional taxonomic divisions into the reasons why some organisms developed new forms while others did not. The new method largely ignores species classification to focus on changes in morphology.

Methods, Biodiversity, Paleontology, Variation (Biology), Species diversity

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Enzyme may blunt cocaine's action

Article Abstract:

Physician and organic chemist Donald Landry and his team have developed an enzyme that could block the effect of cocaine and reduce craving for the drug. The substance may one day be used to treat cocaine addition.

Drug therapy, Cocaine abuse, Cocaine

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Dino DNA: the hunt and the hype

Article Abstract:

Researchers are attempting to extract DNA molecules from blood cells in a dinosaur bone. However, there are many technical difficulties involved in the research, and it may draw attention from more productive work.

Genetic aspects, DNA, Dinosaurs

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