Melanoma is a type of cancer that begins in melanocytes (cells that make the pigment melanin). Below are photos of melanoma that formed on the skin. Melanoma can also start in the eye, the intestines, or other areas of the body with pigmented tissues. Asymmetry: The shape of one half does not match the other half. 2  Border that is irregular: The edges are often ragged, notched, or blurred in outline. 3  The pigment may spread into the surrounding skin. 4  Color that is uneven: Shades of black, brown, and tan may be present.
Grand Canyon. This article is about the canyon in the southwestern United States. For other Grand Canyons, see Grand Canyon (disambiguation). The Grand Canyon (Hopi: Ongtupqa; Yavapai: Wi:kaÊ¼i:la, Navajo: TsÃ©kooh Hatsoh, Spanish: Gran CaÃ±Ã³n) is a steep-sided canyon carved by the Colorado River in the U.S. state of Arizona in North America.
The Grand Canyon is one of the largest gorges in the world, carved over billions of years by the Colorado River in a picturesque part of Arizona. At 277 miles (466 km) long, and as much as 18 miles (29 km) wide, the Grand Canyon is one of the most impressive landforms found anywhere.he Grand Canyon is a short drive from Las Vegas. Cougars roam the Grand Canyon. It took billions of years for the Colorado River to carve out the Grand Canyon. The Grand Canyon is in Arizona, which is located in the American West. Whitewater rafting is available at the Grand Canyon.