High-Tech Eye Design, in Lowly Mollusk
Interesting creature with advanced engineering:
Chiton eye specifications include the thickness, size, and placement of aragonite lenses on the chiton’s shell—coordinated with internal light-detecting soft tissues like membranes and specified proteins. All these are needed just to detect a raw light signal. Therefore, these eyes have such incredibly ingenious engineering that the burden of proof lies with the one who insists that chiton eye specifications are natural “adaptations” rather than intelligently specified designs.
Read more here: http://www.icr.org/article/6070/