We may err in this respect in regard to single points of structure, but when several characters, let them be ever so trifling, concur throughout a large group of beings having different habits, we may feel almost sure, on the theory of descent, that these characters have been inherited from a common ancestor;
Honetan, gerta dakiguke egituraren puntu jakinen batzuei buruz erratzea, baina aztura ezberdinak dituzten talde zabal oso batean ezaugarri bat baino gehiago biltzen direnean, denik xumeenak izanik ere, ia ziur egon gaitezke, ondorengotzaren teoriaren arabera, ezaugarriok arbaso komun batengadik heredatu direla;