Perception is more than just how things are literally viewed.
What are heat and cold receptors and how do they help regulate skin's temperature?
Why does it seem like sunsets are longer than sunrises?
As children younger than four, we could talk, think, and perceive. So why are those years so hard to remember?
Turns out, a UFO attack reported in 1969 was actually a salvo of meteor fragments.
When you use your imagination, you activate the same regions of your visual cortex as those used to see the outer world.
Learn about phobias to snakes and spiders on this edition of A Moment of Science.
Mate selection is tricky business. Here's how one amphibian merges two senses to narrow down its options.
Rats have a strikingly different visual system than our own, one that is carefully attuned to their unique needs.
Vision may not involve creating an inner model of the world in the brain.