|Image by Steve at Wikimedia Commons.|
Other animals, like this tawny frogmouth below, develop physical appearances that help them blend in with their surroundings. When threatened, these birds shut their eyes, erect their feathers and point their beak in such a way to match the color and texture of the tree bark.
|Image by C Coverdale at Wikimedia Commons.|
|This plate from Bates’ 1862 paper, Contributions to an Insect Fauna of |
the Amazon Valley: Heliconiidae is available on Wikipedia Commons.
|The fish on the far left is a juvenile cleaner wrasse in the act of cleaning another fish. The two fish in |
the middle and on the right are both bluestriped fangblennies, one in its cleaner wrasse-mimicking
coloration (middle) and the other not (right). Figure from the Cheney, 2013 article in Behavioral Ecology.