The sensory glands on the side of an Arctic char are used by the fish during its annual spawning migration.
Boa constrictors use their heat-sensitive scales to locate prey.
Bird feathers create a colorful show.
An African elephant's skin can be up to one inch (2.5 centimeters) thick.
A giraffe's spots form irregular patterns.
Intricate rings and dots mark the coat of a jaguar (Panthera onca).
A moth's wings appear iridescent when photographed close-up in the Danum Valley Conservation Area in Sabah, Malaysia.
A map puffer fish's (Arothron mappa) eye appears like coral to casual observers in Indonesia's Tukangbesi Islands.
A close view of a cheetah's wet coat
Black-and-white stripes ripple across the hide of a Grant's zebra.
