Stick Insects Mimic Twigs and Even Sway Like Them

These flatfish adjust their pattern and color within moments, and can blend in on sand and gravel.

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.