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THE METHODS BY WHICH CONCEALMENT
ADAPTIVE RADIATION IN COLOUR RESEMBLANCE II
COLOUR RESEMBLANCE DUE TO CHOICE OF APPROPRIATE BACKGROUNDS
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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 larvæ 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