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Updated: Jul 20, 2026

Investigating Flagella-Driven Motility in Escherichia coli by Applying Three Established Techniques in a Series
Published on: May 10, 2020
From The Origin of Species to the origin of bacterial flagella
Mark J Pallen1, Nicholas J Matzke
1Division of Immunity & Infection, Medical School, University of Birmingham, Birmingham, B15 2TT UK. m.pallen@bham.ac.uk
Abstract:
In the recent Dover trial, and elsewhere, the 'Intelligent Design' movement has championed the bacterial flagellum as an irreducibly complex system that, it is claimed, could not have evolved through natural selection. Here we explore the arguments in favour of viewing bacterial flagella as evolved, rather than designed, entities. We dismiss the need for any great conceptual leaps in creating a model of flagellar evolution and speculate as to how an experimental programme focused on this topic might look.
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