Why doesn't your dog notice his dark green toy on your dark red rug?
You probably have noticed that cats have slit pupils and humans have round pupils. What are the advantages of each pupil shape?
With three simple ingredients, a red, a green, and a blue spotlight, you can make any color of the rainbow. Learn more on this Moment of Science.
How do cold blooded fish stay warm in the frigid ocean? Learn more on this Moment of Science.