20 Things You Didn't Know About Viruses | Discover Magazine
https://www.discovermagazine.com/environment/20-things-you-didnt-know-about-viruses?utm_source=dsctwitter&utm_medium=social&utm_campaign=dsctwitter
https://www.discovermagazine.com/environment/20-things-you-didnt-know-about-viruses?utm_source=dsctwitter&utm_medium=social&utm_campaign=dsctwitter
1. Viruses are not alive: They do not have cells, they cannot turn food into energy, and without a host they are just inert packets of chemicals.
2. Viruses are not exactly dead, either: They have genes, they reproduce, and they evolve through natural selection.
3. Scientists have been debating this issue since 1892, when Dmitry Ivanovsky, a Russian microbiologist, reported that an infection in tobacco plants spreads via something smaller than a bacterium. That something, now called the tobacco mosaic virus, appears on this page (magnified and colorized).
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