On “On the Origin of Species.”

Biologists aren’t reading “On the Origin of Species”? That’s a shame—it’s a really interesting, really enjoyable book. Charles Darwin walks you right through his thinking, so that you can appreciate anew what now seems obvious. If evolution is a topic in which you’re at all interested, add this to your reading list. Or, if you […]

Bacteria caught evolving a major new ability.

An evolutionary biologist has watched a colony of E. coli evolve a stunning new capability, right in the lab. He let a single bacterium reproduce for 44,000 generations in twelve populations. It was just one of the populations that, around the 31,500th generation, suddenly developed the ability to metabolize citrate, thus doubling its available food […]