. Elementary biology; an introduction to the science of life. Biology. nder. cixcuinheT Fig. 252. Genealogical tree of animal life This diagram is intended to suggest the common origin of all animal forms, with the constant progressive departure from ancestral types, now in one direction and now in another, like the branching of a tree. Of course only the main branches are shown. There are probably over a million species of animals living to-day (cf. Fig. 251). Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloratio
. Elementary biology; an introduction to the science of life. Biology. nder. cixcuinheT Fig. 252. Genealogical tree of animal life This diagram is intended to suggest the common origin of all animal forms, with the constant progressive departure from ancestral types, now in one direction and now in another, like the branching of a tree. Of course only the main branches are shown. There are probably over a million species of animals living to-day (cf. Fig. 251). 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 Gruenberg, Benjamin C. (Benjamin Charles), 1875-1965. Boston New York [etc. ] Ginn and company
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Keywords: ., bookcentury1900, bookdecade1920, bookpublishe, booksubjectbiology
