For the past few days I’ve been rushing around, first to Woods Hole, Massachusetts, to talk to some people at the Marine Biological Laboratory about the E. coli book, and then on an infinite chain of connecting flights to come out to Aspen to participate in a science-media summit. It’s a relief to be finally sitting down in one place, and the view of the mountains from here making blogging very fine. But until my blood thickens up a little, I probably won’t be writing much.
If you want to know how a new word gets into Oxford dictionaries, or are interested more generally in the bubbling cauldron of modern English, check out the the first post of new blog from Oxford University Press, From A to Zimmer. That’s Zimmer as in Ben Zimmer, lexicographer, editor at Oxford University Press, and brother.
Originally published June 28, 2007. Copyright 2007 Carl Zimmer.
Discover, June 27, 2007
Every living thing on Earth shares a long, colorful history. Our planet was born into a maelstrom 4.5 billion years ago, and for the next 600 million years a steady bombardment of primordial debris made the surface uninhabitable. The blitz finally tapered off 3.8 billion years ago. Then within about 50 million years later–practically an instant in geologic time–life irrevocably established itself. Since then, it has evolved into everything from bacteria to toadstools to mudskippers to humans. Outwardly these species vary wildly, but at the molecular level they are staggeringly uniform.
The New York Times, June 26, 2007
In the corner of a laboratory at Michigan State University, one of the longest-running experiments in evolution is quietly unfolding. A dozen flasks of sugary broth swirl on a gently rocking table. Each is home to hundreds of millions of Escherichia coli, the common gut microbe. These 12 lines of bacteria have been reproducing since 1989, when the biologist Richard E. Lenski bred them from a single E. coli. “I originally thought it might go a couple thousand generations, but it’s kept going and stayed interesting,” Dr. Lenski said. He is up to 40,000 generations now, and counting.
Continue reading “Fast-Reproducing Microbes Provide a Window on Natural Selection”
In the past few months, the New York Times science section has been putting together some special packages of articles, and this week’s bundle is on the topic of evolution. You can read John Noble Wilford on hominids, Nicholas Wade on recent human evolution, Carol Kaesuk Yoon on the evolution of animal development, and more. No animals for me, thanks–I got the microbes. Which is just fine with me. It’s a world of evolution I get all to myself.