Quiz: What animal does each eye belong to? Imagine a startled pigeon flying at your head. Your eyes—and brain—allow you to see this obstacle quickly, without thinking, and to duck (if you're lucky).

Are you colorblind?Most of us like to think we’ve got vision as sharp as an eagle’s. But honestly, how sure are we? This test ...

We don't know exactly when the first animals on Earth appeared, but it's thought to be around 700 million years ago. Around ...

In the wild you need to be able to spot danger from any angle, but can you spot which eye belongs to which animal? Take this quiz to find out! Animals have eyes different from humans because they are ...

When Dwayne LaGrou asked Weird Animal Question of the Week what animals have the largest eyes for their body size, we were ...

Species see the world differently in part due to photoreceptors in their eyes and the neural architecture of their brains. The eyes of dogs, for example, are structured similarly to people with ...

It depends what one means by “see”, “eye” and “molecule”. A single cell could be light-sensitive, but it would only “see” shades of light and dark. Does seeing imply some degree of comprehension, ...