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EcosystemsTortoise Genes and Island Beings
Geneticists and conservation biologists are joining forces to untangle the evolutionary history of giant Galápagos tortoises and to safeguard the animals' future.
By Bryn Nelson -
Health & MedicineMother Knows All
Fragments of a fetus' genetic material that leak into a pregnant woman's bloodstream reveal details of early fetal development.
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TechHooking up
Cleverly designed molecules can self-assemble into networks and stay robustly connected.
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HumansLetters from the November 10, 2007, issue of Science News
Thinking it through Bjorn Merker says that “the tacit consensus concerning the cerebral cortex as the ‘organ of consciousness’ … may in fact be seriously in error” (“Consciousness in the Raw,” SN: 9/15/07, p.