A woman in Diafarabe, Mali, holds her brilliant yellow scarf against a deep blue African sky.


A yellow boat hull is reflected at the waterline in Forillon National Park, Quebec. This oceanside park is located at the farthest tip of Gaspe Peninsula.


A staircase stands in sharp relief against a wall of yellow stained glass at the University of Colorado in Boulder.


A brightly painted train engine stands under a deep blue sky in Santa Fe, New Mexico.


Red tears of sweat stream down the yellow-painted face of a Huli wigman in Papua New Guinea. His elaborate costume, donned for a ceremonial welcoming dance called the sing-sing, also includes a dramatic wig of human hair.


A spicebush swallowtail caterpillar in Cape Cod, Massachussets, shows off eyespots meant to deter predators looking for an easy meal.


Sunflowers like this one in Asheville, North Carolina, are prized for their beauty but also for their seeds and oil.


A yellow-shafted flicker leaves its nest in a forest in America. Flickers are woodpeckers that can hammer trees but prefer to forage on the ground. They often dig in the dirt for ants.



Yellow beach umbrellas line the sands at a hotel
on Phuket Island, Thailand.


Rows of yellow deck chairs line the pool of the Ciragan Palace Kempinski hotel in Istanbul, Turkey. Once a sultan's residence, the facility now pampers paying guests as one of the city's finest luxury resorts.


The yellow hues of a small home in Lanai City, Hawaii, are matched by its owner's vintage Plymouth. Many residents of this village live in such pastel-painted cottages, first built for pineapple plantation workers.



Eyelash vipers are indigenous to Central and South America and come in a variety of colors, including shocking yellow, like this specimen.


Yellow-necked caterpillars crowd a thin branch on a cherry tree in Frederick, Maryland. Infestations of these caterpillars may defoliate oaks and other hardwood trees but usually do no permanent damage.


Encouraged to bloom by rare rainstorms, a sea of wildflowers blankets the sand dunes of Simpson Desert National Park, Australia. The area averages fewer than 6 inches (15 centimeters) of rain per year.


A blanket of fallen maple leaves covers the ground with gold
during autumn in Washington D.C. The visual "quality" of each fall's foliage is determined by weather conditions such as moisture and temperature.