1 2 Steel, Mike; Penny, David (2010-05-13). "Origins of life: Common ancestry put to the test". Nature. London: Nature Publishing Group. 465 (7295): 168–169. doi:10.1038/465168a. ISSN0028-0836. PMID20463725.
↑ "Age of the Earth". U.S. Geological Survey. 1997. Archived from the original on 2005-12-023. สืบค้นเมื่อ 2006-01-10. Check date values in: |archivedate= (help)
↑ Darwin 1859, p. 490 : "There is grandeur in this view of life, with its several powers, having been originally breathed into a few forms or into one; and that, whilst this planet has gone cycling on according to the fixed law of gravity, from so simple a beginning endless forms most beautiful and most wonderful have been, and are being, evolved."
↑ Harris 1981, p. 107: May we not say that, in the fortuitous combination of the productions of Nature, since only those creatures could survive in whose organizations a certain degree of adaptation was present, there is nothing extraordinary in the fact that such adaptation is actually found in all these species which now exist? Chance, one might say, turned out a vast number of individuals; a small proportion of these were organized in such a manner that the animals' organs could satisfy their needs. A much greater number showed neither adaptation nor order; these last have all perished.... Thus the species which we see today are but a small part of all those that a blind destiny has produced.
↑ Kant 1987, p. 304: "Despite all the variety among these forms, they seem to have been produced according to a common archetype, and this analogy among them reinforces our suspicion that they are actually akin, produced by a common original mother."
↑ Darwin 1818, p. 397 [§ 39.4.8]: [W]ould it be too bold to imagine, that in the great length of time, since the earth began to exist, perhaps millions of ages before the commencement of the history of mankind, would it be too bold to imagine, that all warm-blooded animals have arisen from one living filament, which the great First Cause endued with animality, with the power of acquiring new parts attended with new propensities, directed by irritations, sensations, volitions, and associations; and thus possessing the faculty of continuing to improve by its own inherent activity, and of delivering down those improvements by generation to its posterity, world without end?
↑ Darwin 1859, p. 484: Therefore I should infer from analogy that probably all the organic beings which have ever lived on this earth have descended from some one primordial form, into which life was first breathed.
↑ Knight, Robin; Freeland, Stephen J.; Landweber, Laura F. (2001-01). "Rewiring the keyboard: evolvability of the genetic code". Nature Reviews Genetics. London: Nature Publishing Group. 2 (1): 49–58. doi:10.1038/35047500. ISSN1471-0056. PMID11253070. Check date values in: |date= (help)
↑ Theobald, Douglas L. "Prediction 1.3: Consilience of independent phylogenies". 29+ Evidences for Macroevolution: The Scientific Case for Common Descent. Version 2.89. Houston, TX: The TalkOrigins Foundation, Inc. สืบค้นเมื่อ 2009-11-20.
↑ Raven, Evert & Eichhorn 2005, p. 200: "[These vegetables were] all produced from a single species of plant (Brassica oleracea), a member of the mustard family."
