. Evolution and animal life; an elementary discussion of facts, processes, laws and theories relating to the life and evolution of animals . FIG. 9.—Blunt-nosed salamander, A mblystoma opacum. (Photograph by W. K. Fisher.). FIG. 10.—White pelicans, Pelecanus erythrorhynchus, and whooping-crane, Grus ameri- cana. (Photograph by W. K. Fisher.) VARIETY AND UNITY IN LIFE 21 terminated by such parasites. Fill a bottle with flies. All intime will die of suffocation, but a certain few will outlast themany. Bring in a number of wolf cubs. Some will becomerelatively tame—some will remain wolves, and be
. Evolution and animal life; an elementary discussion of facts, processes, laws and theories relating to the life and evolution of animals . FIG. 9.—Blunt-nosed salamander, A mblystoma opacum. (Photograph by W. K. Fisher.). FIG. 10.—White pelicans, Pelecanus erythrorhynchus, and whooping-crane, Grus ameri- cana. (Photograph by W. K. Fisher.) VARIETY AND UNITY IN LIFE 21 terminated by such parasites. Fill a bottle with flies. All intime will die of suffocation, but a certain few will outlast themany. Bring in a number of wolf cubs. Some will becomerelatively tame—some will remain wolves, and between themost fierce and the most docile we shall find all ranges ofvariation. What is one mans food is another mans proverb is a recognition of the principle of individualitywhich accompanies everywhere the formation of species, andbeing everywhere present, it must be an integral part of the
Size: 1791px × 1395px
Photo credit: © Reading Room 2020 / Alamy / Afripics
License: Licensed
Model Released: No
Keywords: ., bookauthorkelloggvernonlvernonl, bookcentury1900, bookdecade1900
