title: Zoology: The Walking Heads.
abstract: An analysis of Hox genes reveals that the body of the adorably weird tardigrades is essentially a truncated front end. This illustrates that loss and simplification are a hallmark of the evolution of animal body plans.
authors.affiliation: Florian Maderspacher is Current Biology's Senior Editor. Electronic address: florian.maderspacher@current-biology.com.
authors.forename: Florian
authors.initials: F
authors.lastname: Maderspacher
mesh_terms: D000818:Animals; D005075:Biological Evolution; D019143:Evolution, Molecular; D005801:Genes, Homeobox; D010802:Phylogeny; D016138:Walking; D015046:Zoology