Appearance: Black, grey, or brown bodies. Three longitudinal stripes running from head to tail that can be yellow or white.

More than 70 years ago, mathematician Alan Turing proposed a mechanism that explained how patterns ... its stripes, the cheetah its spots and more besides. Tuxedo cat with black fur and white ...

Creatures have evolved a dizzying array of patterns ... white begins. The black dots on Dalmatians are generated randomly. So are the black-and-orange splotches on calico cats. But the stripes ...

Zebras' thick, black stripes ... of these patterns contrast as starkly as the zebra's. Researchers have long struggled to explain the purpose of the zebra's unique black-and-white coat.