How many colors can we see?
rcwebber
How many colors can we see? -Andrew P., 12
Dear Andrew,
The human eye can see millions and millions of colors. But believe it or not, some colors exist in our world that the human eye can’t see. » More …
Eyes: Two, one, lots, none
rcwebber
Are there creatures on Earth with one eye? -Elena, 7, Vancouver, Canada
Dear Elena,
The animal kingdom is full of amazing eyes. And yes, there are actually creatures on our planet that have just one. » More …