To adapt to changing environments, fish have evolved with an enzyme researchers refer to as Cyp27c1, which is closely linked to vitamin A and known to promote good vision in low light.
During the winter monthsong, songbirds routinely eat from bird feeders that remain a vital food source, but such good-will gestures have been linked recently to a widespreading avian eye disease that is often fatal.
It is commonly believed that the carrot can give humans better night vision - a myth started by WWII propaganda and perpetuated by the discovery that high concentrations of vitamin A are good for eye health. Now, while the carrot won't actually help you see in the dark, new research investigates if the blueberry will.
An extinct giant sea scorpion once thought to be a big, bad predator in ancient seas actually had poor eyesight, possibly making it not so effective at capturing prey, a new study shows.