Stem Cell Therapy Could Help Restore Vision

Researchers from Singapore and Sweden have developed a potentially viable stem cell therapy approach in preclinical models that can help replace lost photoreceptors.

These Butterflies See The World In 15 Shades Of Photoreceptors

Common Bluebottle butterflies have at least 15 different classes of photoreceptors, or light-detecting cells, in their eyes; no other insect has more than nine.