sight

Ask Dr. Universe: How many colors can we see?

July 14, 2016

PULLMAN, Wash. – 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.

Ask Dr. Universe: Do spiders have good eyesight?

October 27, 2015

PULLMAN, Wash. – Most spiders have quite a few eyes, but they usually can’t see very well. Then again, seeing isn’t everything.