Richard Lenski

tags: researchblogging.org, evolution, experimental evolution, adaptation, mutation, natural selection, Richard E. Lenski The common gut bacteria, Escherichia coli, typically known as E. coli. Image: Dennis Kunkel. Evolution is a random process -- or is it? I ask this because we all can name examples of convergent evolution where very different organisms arrived at similar solutions to the challenges they are faced with. One such example is the striking morphological similarities between sharks (marine fishes) and dolphins (marine mammals). Thus, based on observations of convergent…