• Murchison’s Amino Acids: Tainted Evidence?
    Few meteorite discoveries can rival the one that fell in 1969, just 60 miles north of Melbourne, Australia. Called the Murchison meteorite, the rock's interior showed signs of the protein building blocks of life.
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  • Prospecting for Viruses
    Under scalding, acidic conditions, how do life processes function? Because of their simplicity relative to cellular life forms, the 3500 described viruses may offer scientists the best opportunity to glean information about survival in extreme environments.
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  • Tandem Evolution
    A type of clam that inhabits deep-sea hydrothermal vents is so closely knit with a bacterium living in its tissues that their evolutionary paths, as recorded in their DNA, run in lockstep.
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