Adaptive Coloration in AnimalsMethuen & Company, Limited, 1940 - 508 pages |
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Page 69
... continued along the outer forearm and leg , while these are themselves so disposed that elbow meets knee . Meanwhile the eyes , at other times so bright and conspicuous , sink from view into their orbits and are covered by the lower lid ...
... continued along the outer forearm and leg , while these are themselves so disposed that elbow meets knee . Meanwhile the eyes , at other times so bright and conspicuous , sink from view into their orbits and are covered by the lower lid ...
Page 81
... continued backwards as the darkened lower border of the tegmen ( Fig . 29 ) . In the case of the African Oraistes puncti- pennis and the Australian Gesonia mundata , to which we must refer again pres- ently , parallel conditions are ...
... continued backwards as the darkened lower border of the tegmen ( Fig . 29 ) . In the case of the African Oraistes puncti- pennis and the Australian Gesonia mundata , to which we must refer again pres- ently , parallel conditions are ...
Page 138
... continued experimenting , pressing down the bird's head and trying to bend him by main force into some other position ; but the strange rigidity re- mained unrelaxed , the fixed attitude unchanged . I also found , as I walked round him ...
... continued experimenting , pressing down the bird's head and trying to bend him by main force into some other position ; but the strange rigidity re- mained unrelaxed , the fixed attitude unchanged . I also found , as I walked round him ...
Contents
THE METHODS BY WHICH CONCEALMENT | 5 |
ADAPTIVE RADIATION IN COLOUR RESEMBLANCE II | 11 |
CONCLUSION | 15 |
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advertisement Africa antennæ aposematic aposematic animals appearance attack attitude background bark bees behaviour birds body brown Bufo butterflies camouflage caterpillars chromatophores closely colour colour-scheme concealing coloration conspicuous contrast correlated countershading crab creatures Crustacea cryptic coloration dark deceptive defence device display disruptive pattern distasteful dorsal eaten Edward Poulton effect eggs enemies environment evidence example exhibited experiments fact feeding fishes frogs function genus grasshoppers green grey ground group of animals habits head hind Hingston Hymenoptera illustrated insects instance instinct larva larvæ later leaf legs Lepidoptera light lizards mammals markings mimetic moths nature nest Nightjars observed optical Orthoptera patches pigment Plate Portuguese East Africa Poulton predators predatory prey principle procryptic protective referred relation remarkable resemblance rest seen shade shadows significant similar snakes species specimens spider spots Stone-Curlew striking surface surroundings tail tegmina tion toads tone various warning coloration widely wings yellow