31.   A toothpaste that promises to whiten teeth with a bleaching agent can do little to change the color of teeth, dentists say.

32.   Add to that the fact that the black bears that populate Colorado change color as the summer passes.

33.   After the war, they changed the color to silver and used it to repair air-conditioning and heating units.

34.   All have deeply dissected leaves, and some feature foliage that is scented, textured or changes color in the fall.

35.   All the while, the distant, treeless mountains imperceptibly change color from gray to copper to brown to red and back again as the day lengthens.

36.   Both can cause images to change color and lose detail with the passage of time.

37.   But change the colors in a pack of candy?

38.   But some evergreens change color in the winter and then change back in the spring.

39.   But what really alarmed him was when his flesh changed color.

40.   Change their color to teal and they look a lot like the San Jose Sharks.