...Variations and genetic relationships of the garter-snakes... 
Henry S. Fitch 「Occurrence of the Garter Snake, Thamnophis sirtalis, in the Great Plains and Rocky Mountains」
...baudini and sordida wasthe result of genetic changes in geographically isolated populations...
William E. Duellman 「Neotropical Hylid Frogs, Genus Smilisca」
...Morphologically, the differences between the two are few, but lackingevidence of genetic exchange they are retained as species...
John D. Lynch 「A Taxonomic Revision of the Leptodactylid Frog Genus Syrrhophus Cope」
...A new cowbird of the genusMolothruswith a note on the probable genetic relationships of the North American forms...
Emil K. Urban 「Birds from Coahuila, Mexico」
... have we not astrong genetic bond uniting these three great groups into one grandsubkingdom...
Alpheus Spring Packard 「Our Common Insects」
...Of all bodily structures, the teeth apparentlyare under the most rigid genetic controls; they form early in the embryo andfollow rigidly specified patterns in their ontogeny...
Charles L. Douglas 「Comparative Ecology of Pinyon Mice and Deer Mice in Mesa Verde National Park, Colorado」
...Furthermore, the confirmed presence of this species in the lowlands of El Petén suggests that there may be genetic connection between B...
William E. Duellman 「Amphibians and Reptiles of the Rainforests of Southern El Peten, Guatemala」
...Some of these differences result fromthe differing environments where Anderson's study and my ownwere made and others certainly result from innate genetic differencesbetween the species...
Henry S. Fitch 「Field Study of Kansas Ant-Eating Frog」
...After geographical separation took place the initial genetic divergence between the two populations was maintained by means of ecological and ethological isolating mechanisms...
Juan R. León 「The Systematics of the Frogs of the Hyla Rubra Group in Middle America」
...Consequently, the embryonic features in their individual development mustalso have a genetic connection...
Ernst Haeckel 「The Evolution of Man」
...The whole philosophy of the future will betransformed as soon as psychology takes cognisance of these genetic phenomenaand makes them the basis of its speculations...
Ernst Haeckel 「The Evolution of Man」
...The original and genetic relation of these two kinds of ducts is just the samein man as in the rest of the higher Vertebrates, and quite different from whatwe find in most of the Invertebrates...
Ernst Haeckel 「The Evolution of Man」
...It has, however, no genetic connectionwith the primitive kidneys, but is a pouch-like growth from the anterior wallof the rectum (Fig...
Ernst Haeckel 「The Evolution of Man」
...Zoölogical research is largelydirected to the discovery of the genetic relations of animals...
J. W. Powell 「On Limitations To The Use Of Some Anthropologic Data」
...Yet it is not urged that there is any direct genetic connectionbetween the two; that the Babylonians either taught their legend to theScandinavians or learnt it from them...
E. Walter Maunder 「The Astronomy of the Bible」
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