Adaptive Coloration in Animals |
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Page 38
Now the compensating effect of light and shade on dark and light surfaces is
upset ; the optical illusion is destroyed ; and in death she becomes as
conspicuous as in life she was difficult to see . II . COUNTERSHADING
PRODUCED BY ...
Now the compensating effect of light and shade on dark and light surfaces is
upset ; the optical illusion is destroyed ; and in death she becomes as
conspicuous as in life she was difficult to see . II . COUNTERSHADING
PRODUCED BY ...
Page 40
little countershading ; but this deficiency is compensated for by the black spots ,
which are closer together on the back , and become more widely separated
towards the under surfaces - a scheme based upon the arrangement seen in Fig .
little countershading ; but this deficiency is compensated for by the black spots ,
which are closer together on the back , and become more widely separated
towards the under surfaces - a scheme based upon the arrangement seen in Fig .
Page 224
dorsal surface of the mantle . Then follows a rapid and complete paling of the rest
of the animal , while the black spots themselves become still more saturated and
intense . “ Thus for a moment ' , writes Holmes , ' the two black spots stand out ...
dorsal surface of the mantle . Then follows a rapid and complete paling of the rest
of the animal , while the black spots themselves become still more saturated and
intense . “ Thus for a moment ' , writes Holmes , ' the two black spots stand out ...
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Contents
THE METHODS BY WHICH CONCEALMENT | 5 |
ADAPTIVE RADIATION IN COLOUR RESEMBLANCE II | 11 |
COLOUR RESEMBLANCE DUE TO CHOICE OF APPROPRIATE BACKGROUNDS | 18 |
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Common terms and phrases
adaptive animals aposematic appearance associated attack attention attitude background become bees belonging birds body brown butterflies caterpillars certain closely colour combined concealment considered conspicuous contrast cryptic dark deceptive depends described developed device directed display disruptive effect eggs enemies environment evidence example exhibited experiments fact feeding field fishes frequently frogs function further green ground habits hand head highly illustrated important individuals insects instance interesting kind known larv¿ later leaf leaves less light living lizards markings means method mimicry moths movements nature nest objects observed occur particular pattern perfect position predators present prey principle produced protective referred relation relatively remarkable resemblance rest says seen selection shade side significant similar snakes species spider striking structure surface surroundings toads tone various warning widely wings yellow young