id	author	title	date	pages	extension	mime	words	sentences	flesch	summary	cache	txt
work_t24zrvjgm5ekvoluqnvwqfxfc4	Mary Jane West‐Eberhard	Toward a Modern Revival of Darwin's Theory of Evolutionary Novelty	2008	11	.pdf	application/pdf	4214	262	44	Darwin proposed that evolutionary novelties are environmentally induced in organisms A molecular theory of inheritance, pangenesis, explained the cross-generational transmission of environmentally induced induced change, supports a revival of Darwin's original theory that is consistent with An evolutionary novelty can be defined as a discrete phenotypic trait that is new in composition or context of expression relative to In this essay, I will consider novelties that are somewhat complex—the kind of phenotypic traits that Darwin attempted to explain as 2. Darwin's Theory as a Causal Chain to Explain Adaptive Evolution. adaptive novelty under natural selection is a two-step process: first variation, then spread. novelties under positive selection, Darwin invented a molecular theory of with a kind of "genetic assimilation," erroneously ascribed to phenotypically local effects on the particles of inheritance under natural selection. As in Darwin's theory, innovation begins with a population of constitutionally (genetically and phenotypically) variable environmentally sensitive organisms.	./cache/work_t24zrvjgm5ekvoluqnvwqfxfc4.pdf	./txt/work_t24zrvjgm5ekvoluqnvwqfxfc4.txt