When we are in a fairly dark room, or outside at night away from lights, we can still see, but we can't see the colors of things very well. Why is that?
To interpret a barrage of information, sharks have developed a relatively large and complex brain...
Scientists found that some blind people can follow spots with their eyes or point them out.
Have you ever noticed that Siamese cats are cross-eyed? In fact, that's the only way a Siamese cat can see straight.
Scientists found that nearly identical genes play key roles in the formation of the eyes in mammals and fruit flies.
Some people can vegetables or preserves. Dr. Harvey preferred the most famous brain in theoretical physics.
It can happen at a carnival or on the dance floor--that moment when you stop spinning and the world starts spinning around you.
3D TV and movies seem to be all the rage but are they harmful to eyes?
Eagle's have very different vision compared to humans.
You probably have noticed that cats have slit pupils and humans have round pupils. What are the advantages of each pupil shape?