The first big clue was a free-floating weight at the bottom of the rhopalium that ensures that the upper eye is always looking ... to piece together their inner anatomy, eyes included, and reconst ...

The invention of the eye ushered in a more brutal and competitive ... Hydras are interesting from an evolutionary perspective because their basic light-sensing equipment is very similar to that ...

Evidence for this function first came from studies of the organ's anatomy and its nerves as well ... eyes attached to thick optic nerves. Each eye has few cones, which register color, but many ...

Learn about the anatomy of your eyes and how each part of the eye works in order to create visual output. Does your baby really need an eye exam in their first year? Absolutely. The smaller and ...

While we humans reshape our lenses in order to focus on specific objects, the cuttlefish moves its lenses by reshaping its entire eye. Also ... specialized fins for basic mobility and maintaining ...