You'd probably walk past a chiton without even seeing it. These creatures often look like nothing more than another speck of seaweed on the crusty intertidal rocks. But it sees you. At least, if it's ...

This essay was launched by reading an almost unintelligible (to me) scientific paper about chiton eyes. Nevertheless, that paper led to others, and here I have summarized some of the related natural ...

MR. RAY LANKESTER, in his letter on “The Segmentation of Annulosa” in NATURE of the 4th ult., appears to maintain that there is no fundamental difference between the segmentation of annelids and that ...

Diagrams (top) and electron microscope images (bottom) of chiton shells. From left to right: Aesthetes (green) are fount on all chitons, while shell eyes (blue) and eyespots (red) only evolved in a ...