id	author	title	date	pages	extension	mime	words	sentences	flesch	summary	cache	txt
14558	Wallace, Alfred Russel	Darwinism (1889) An exposition of the theory of natural selection, with some of its applications			.txt	text/plain	113974	4307	57	exceptionally coloured individuals of many species in a state of nature, theory than that the white colour of arctic animals has been acquired colour of the great majority of birds, especially on the upper surface, bright-coloured birds, insects, and flowers which are brought from This form of colour adaptation is generally manifested by markings The colours of birds' eggs have long been a difficulty on the theory of insects exhibit varieties of colour and marking, forming the most one species so closely resembles another in external form and colouring male of most animals--but especially of birds and insects--to develop _Sexual Selection as a supposed Cause of Colour Development._ cases led to modifications in the form and colour of flowers. animal integuments.[161] He argues that the colours of insects and birds Each species of animal or plant thus forms part of one harmonious whole, so the distinctive form and colour of each species of flower, as	./cache/14558.txt	./txt/14558.txt