Add Yahoo as a preferred source to see more of our stories on Google. Here's some science trivia for you: unlike the inner retina in most animals (including us), birds' inner retinas function without ...

When an optometrist shines a bright light into your eyes, a vast, branching tree sprouts in your field of vision. This is the shadow of blood vessels. Though we normally can’t perceive them, these ...

Here's some science trivia for you: unlike the inner retina in most animals (including us), birds' inner retinas function without oxygen. And now, researchers led by a team from Aarhus University in ...