1) Camouflage
Found on
https://www.crosswordclues.com/clue/countershading
body colouration which is dark above and lighter below
Found on
http://australianmuseum.net.au/Glossary-of-fish-terms
Countershading, or Thayer`s Law, is a form of camouflage. Countershading is the pattern of animal coloration in which an animal’s pigmentation is darker on the upper side and lighter on the underside of the body. This pattern is found in many species of mammals, reptiles, birds, and fish, and has existed since at least the Cretaceous period. Wh....
Found on
http://en.wikipedia.org/wiki/Countershading
(from the article `concealing coloration`) ...identity and location of an animal may be concealed through a coloration pattern that causes visual disruption because the pattern does not ... Another clue can lead to the recognition of an organism: its three-dimensional form, which causes the unilluminated portion of the body to be in ......
Found on
http://www.britannica.com/eb/a-z/c/150
A color pattern, serving as camouflage, in which dark colors occur on the upper portion of the body and lighter colors occur on the underside.
Found on
http://www.conservewildlifenj.org/glossary/
A form of camouflage in which either the top or bottom of an animal is lighter or darker than the other side. In aquatic environments, most often the top is darker than the bottom so that the animal will blend in with the ocean depths for a nything looking down on it and will blend in with the reflections of the surface waters for anything looking ...
Found on
http://www.pelagic.org/biology/glossary.html
Light underparts and dark upperparts of plumage disguise the outline of a bird, aiding in concealment.
Found on
http://www.sialis.org/glossary.htm
body colouration which is dark above and lighter below
Found on
http://www.translationdirectory.com/glossaries/glossary302.php
Having a lighter colour on the underside than on the upper side. This helps with camouflage from both above and below.
Found on
http://www.world-of-sharks.com/shark-glossary.html
A type of coloration in which an organism is darker on top than below; countershading provides camouflage by reducing the contrast between the top and shadowed underside of an organism so that it appears less three-dimensional.
Found on
https://academy.allaboutbirds.org/bird-academys-a-to-z-glossary-of-bird-ter
Condition of organisms in the water column that are dark-colored on top but light-colored on the bottom
Found on
https://www.encyclo.co.uk/local/20125
the development of dark colors on parts usually exposed to the sun and of light colors on parts usually shaded, esp. as serving for protection or concealment.
Found on
https://www.infoplease.com/dictionary/countershading
No exact match found.
