Giraffes, Botswana

Photograph by Chris Johns

A balance of playful yellow and passionate red, orange commands attention without overwhelming. This often flamboyant color brings to mind citrus and sunsets, fall leaves, and jack-o'-lanterns. Orange has even been found to stimulate appetite and creativity in humans.

Here, three giraffes in Botswana's Okavango Delta stretch their necks above the horizon before a glowing orange sky.