Adaptive Coloration in Animals |
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Page 163
If groups of two each of these figures are now placed before the hens so that one
kind lies under a glass plate and the other on it , the birds learn very quickly to
take only the kind lying on top . Later they do not touch the other kind , even if it is
...
If groups of two each of these figures are now placed before the hens so that one
kind lies under a glass plate and the other on it , the birds learn very quickly to
take only the kind lying on top . Later they do not touch the other kind , even if it is
...
Page 213
Terrifying attitudes of this kind are widespread throughout the animal kingdom ,
but here we can only mention a few before passing on to the next class of display
phenomena . Among birds expansion displays — as different as the species ...
Terrifying attitudes of this kind are widespread throughout the animal kingdom ,
but here we can only mention a few before passing on to the next class of display
phenomena . Among birds expansion displays — as different as the species ...
Page 331
... reproduced by a median prominence on the caterpillar's back , the head being
tucked in so that this prominence forms the lower extremity of the ' dropping ' . An
instance of the same kind in Britain is afforded by an early larval stage of ...
... reproduced by a median prominence on the caterpillar's back , the head being
tucked in so that this prominence forms the lower extremity of the ' dropping ' . An
instance of the same kind in Britain is afforded by an early larval stage of ...
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Contents
THE METHODS BY WHICH CONCEALMENT | 5 |
VARIABLE COLOUR RESEMBLANCE | 20 |
THE PRINCIPLE OF CONCEALMENT BY COUNTERSHADING | 35 |
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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 London markings means method mimicry moths movements nature nest Notes objects observed occur particular pattern 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 tree various warning widely wings yellow young