The twilight world between chemistry and life

http://readingandspelling.com/contact-us/ Viruses live in a twilight zone, somewhere between life and its ingredients. My fifth structure of Christmas emerges from that zone to wreak havoc on cattle: the foot-and-mouth-disease virus.

Consider the virus: a beautifully crafted set of molecules perfectly arranged to do one thing, and one thing only: subvert life forms to make more of itself. But what is it? Is it ‘alive’, in the conventional sense?

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