. Life and love. Biology; Reproduction. VARIABILITY AND INHERITANCE. N all life, both low and high, the power to re- produce depends upon a certain resemblance between the two parents. Sex attraction is operative only within narrow limits. Long ago, we are told, there existed strange creatures on the earth. There were then no birds such as now live, and no mammals. Reptiles and birds were not yet separated from each other, but there existed creatures which were a sort of mixture of both. In course of time the descendants of these strange reptile-birds became more decidedly rcptilc-like on the
. Life and love. Biology; Reproduction. VARIABILITY AND INHERITANCE. N all life, both low and high, the power to re- produce depends upon a certain resemblance between the two parents. Sex attraction is operative only within narrow limits. Long ago, we are told, there existed strange creatures on the earth. There were then no birds such as now live, and no mammals. Reptiles and birds were not yet separated from each other, but there existed creatures which were a sort of mixture of both. In course of time the descendants of these strange reptile-birds became more decidedly rcptilc-like on the one hand, and bird-like on the other. In early ages all life seems to have found it easier to take new forms than it does now, and so there arose the race of reptiles as a result of cher- ishing the most reptilian characteristics of the reptile-bird form, and developing these character- istics to the exclusion of Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original Morley, Margaret Warner, 1858-1923. Chicago, A. C. McClurg and Company
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Keywords: ., bookcentury1800, bookdecad, booksubjectreproduction, bookyear1895
