Blue is the favorite color of more people in the world than any other, and the "blue flower" is considered a symbol of romantic longing. In nature, however, there are only a few plant species whose ...

This story is part of a series on the current progression in Regenerative Medicine. This piece is part of a series dedicated to the eye and improvements in restoring vision. In 1999, I defined ...

Bees have a phenomenal ability to perceive different shades of color, and their eyes are able to see ultraviolet light. This helps them find flowers that produce nectar. Human beings are also ...