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==Fig,. 5. ==
==Fig. 5. Legs of Five Mammals==


Drawn to scale, to show homologous parts. (After Leconte, from Romanea.)
The legs of man, monkey, dog, sheep, and the horse are made up of similar bones (fig, 5) . The same parts are found in the leg of the lizard, the frog, and, even though less certainly, in the fins of fishes. Comparison does not end here. We find similarities in the skull and backbones of these same animals ; in the brain ; in the digestive system; in the heart and blood vessels; in the muscles.


{{Morgan1925_figures}}
{{Morgan1925_figures}}

Latest revision as of 16:56, 16 October 2014

Fig. 5. Legs of Five Mammals

Drawn to scale, to show homologous parts. (After Leconte, from Romanea.)

The legs of man, monkey, dog, sheep, and the horse are made up of similar bones (fig, 5) . The same parts are found in the leg of the lizard, the frog, and, even though less certainly, in the fins of fishes. Comparison does not end here. We find similarities in the skull and backbones of these same animals ; in the brain ; in the digestive system; in the heart and blood vessels; in the muscles.


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Reference

Morgan, T. H. (1925). Evolution and genetics. Princeton: Princeton University Press.



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