Adaptive Coloration in AnimalsMethuen & Company, Limited, 1940 - 508 pages |
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Page 84
... crossed by a stripe exactly the width of the pupil itself . In other cases similar effects are produced in vertical bars instead of horizontal stripes ; or in diagonal markings or irregular shapes varying greatly in size and ...
... crossed by a stripe exactly the width of the pupil itself . In other cases similar effects are produced in vertical bars instead of horizontal stripes ; or in diagonal markings or irregular shapes varying greatly in size and ...
Page 85
... crossed by a jet - black ribbon of pigment , just the width of the pupil . The stripe so formed across the front of the eye- ball continues forwards on to the snout and backwards on to the operculum , and in each direction it gradually ...
... crossed by a jet - black ribbon of pigment , just the width of the pupil . The stripe so formed across the front of the eye- ball continues forwards on to the snout and backwards on to the operculum , and in each direction it gradually ...
Page 393
... crossed over and closely adpressed to its body . • ' The appearance of the excreta rather recently left on a leaf by a bird or a lizard is well known . Its central and denser portion is of a pure white chalk- like colour , streaked here ...
... crossed over and closely adpressed to its body . • ' The appearance of the excreta rather recently left on a leaf by a bird or a lizard is well known . Its central and denser portion is of a pure white chalk- like colour , streaked here ...
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