"Improbable Planets": Astronomers are finding planets where there were not supposed to be any.
"The Price of Silent Mutations": Small changes to DNA are proving to be big factors in human diseases, evolution and biotechnology.
"The Taming of the Cat": Genetic and archaeological findings suggest wildcats became house cats much earlier - and in a much different place.
"Phosphorus: A Looming Crisis": Global reserves of the once underappreciated element are rapidly depleting.
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