Many animals have evolved so that they visually resemble their surroundings by using some sort of natural camouflage that may match the color and texture of the surroundings ( cryptic coloration ) and / or break up the visual outline of the animal itself ( disruptive coloration ).
22.
The reviewer writes that it is among Lepidoptera ( butterflies and moths ) that " protective resemblance or'cryptic coloration'is most beautifully illustrated, and the book teems with instances " of these, noting that Poulton had " made this part of the subject his own ".
23.
It is fairly common in most of its range, and therefore listed as Least Concern by the IUCN . However, the yellow-legged thrush is a shy species, and the female in particular is difficult to see, since she does not sing and has a cryptic coloration.
