Scientists track retrovirus that’s wiped out 80 percent of the koala population in some areas

By The Economist
Wednesday, December 25, 2013 6:49 EDT
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"Australian Koala Bear With Her Baby Or Joey In Eucalyptus Or Gum Tree, Sydney, Nsw, Australia." on Shutterstock
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Koala killer (via The Economist)

VIRUSES are nasty. The very word stems from Latin for “poison”. A class of them called retroviruses is particularly insidious. These, which include AIDS-causing HIV, inject their genetic material into a host’s DNA, where it is replicated along with…

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