Memoir upon the Compound and Smooth or Simple Eyes of Insects, and on the Manner in Which These Two Species of Eyes Concur in Vision. Author: M. MARCEL DE SERRES Author Info & Affiliations.

Bougainvillia's eyes, called ocelli, are simple structures that detect light but lack the complexity of lens eyes. When analyzing its genome, the team found 20 "opsins"—light-sensitive proteins ...

Jellyfish as a phylum have evolved eyes at least nine separate times, making them a model species for understanding how such a complex organ evolved. Scientists have sequenced the genome of ...