Carl Zimmer (born 1966) is a popular science writer and blogger, especially regarding the study of evolution and parasites. He has written several books and contributes science essays to publications such as The New York Times and Discover. He is a Fellow at Yale University's Morse College. He lives in Guilford, Connecticut, with his wife, Grace Farrell Zimmer, and their two children. His father, Dick Zimmer, was a Republican congressman from New Jersey from 1991 through 1997. His brother, Benjamin Zimmer, is a linguist.

A Best Book of the Year

Seed Magazine • Granta Magazine • The Plain-Dealer

In this fascinating and utterly engaging book, Carl Zimmer traces E. coli 's pivotal role in the history of biology, from the discovery of DNA to the latest advances in biotechnology. He reveals the many surprising and alarming parallels between E. coli 's life and our own. And he describes how E. coli changes in real time, revealing billions of years of history encoded within its genome. E. coli is also the most engineered species on Earth, and as scientists retool this microbe to produce life-saving drugs and clean fuel, they are discovering just how far the definition of life can be stretched.