Flounders Can Change Their Skin Pattern to Match the Seafloor

With thousands of species, some stick insects rock back and forth as if moved by the wind.

Madagascar's Uroplatus geckos have flattened bodies and ragged edges that make them nearly invisible against bark and leaf litter.

Their fur turns white in winter and brown in summer, matching the landscape in each season.

Rather than only blending in, chameleons shift color to signal mood, attract mates and regulate temperature.