Since this essay was first published a very curious difficulty has been cleared up by the application of the general principle of protective colouring.
PAGE 53 Additional illustration of protective colouring in the case of the wood-dove and the robin.
Among birds, the ptarmigan is a fine example of protective colouring.
Let us see how the adoption of protective colouring holds as applied to these species--all of which are brown in summer, white in winter.
That, then, is the essential adjunct to protective colouring--you must keep still.
Protective colouring is all right, no doubt--if you keep still.
Hence, instead of preservation and subsequent improvement having taken place in consequence of free intercrossing among all individuals of the species (as in the cases of protective colouring, &c.
Robinson on Protective Colouring We readily admit that the Darwinian theory has thrown a great deal of light on the phenomenon of animal colouration; it has reduced to something like order what was before Darwin's time chaos.
At first sight this certainly appears to be a remarkable case of protective colouring.
For, in as far as protective colouring is of advantage to the species which present it, it is of corresponding disadvantage to those other species against the predatory nature of which it acts as a defence.
The so-called Lamarckian theory, for instance, cannot be brought to bear upon the facts at all; and on the theory of special creation it is unintelligible why the phenomena of protective colouring should be of such general occurrence.
They usually frequent more open forests; and the spots on their hide assimilating to the dappled light and shade of the sun through the leaves is a good example of Nature's protective colouring.
The fore wings have a protective colouring; the hind wings are bright red.
Defenceless they are in one sense, but as a fact they are no worse off than the well-armed species, having either a protective colouring or a greater swiftness or cunning to assist them in escaping from their enemies.
Excessive variation in this direction is checked in nearly all other birds by the need of a protective colouring, few kinds so greatly excelling in strength and activity as to be able to maintain their existence without it.
The above list will hopefully provide you with a few useful examples demonstrating the appropriate usage of "protective colouring" in a variety of sentences. We hope that you will now be able to make sentences using this group of words.
