Unlike typical opsins, the anthozoan-specific opsin II group (ASO-II opsins) in reef-building corals use chloride ions (Cl⁻) instead of amino acids as counterions. Corals may lack eyes, but they are ...

Corals may lack eyes, but they are far from blind. These delicate animals sense light in ways that continue to amaze and inspire the scientific community. Researchers from Osaka Metropolitan ...