Nature comes in a variety of striking colors, but all that beauty didn't evolve for our enjoyment. Conspicuous colors tend to be signals, often helping animals woo mates or warn predators. Yet the ...

In nature, the ability to change color can be key to survival. Vision is a very important sense in much of the animal kingdom, and many animals have come up with unique ways to use this sense to ...

A question for the reader: How do you describe the physical appearance of an elephant? Now, a slightly more complex question: Among a parrot, giraffe, and ostrich, which is least like the other two?