Perhaps Prometheus was the first Darwin of antiquity, for he is said to have begun his creation from below, and after passing from the invertebrate to the sub-vertebrate, from thence to the backbone, from the backbone to the mammalia, and from the mammalia to the manco- cerebral, he compounded man of each and all:-英文原著 · 《Canterbury Pieces》
"In the class of mammals the steps are not difficult to conceive which led from the ancient Monotremata to the ancient Marsupials; and from these to the early progenitors of the placental mammals. We may thus ascend to the Lemuridae; and the interval is not very wide from these to the Simiadae. The Simiadae then branched off into two great stems, the New World and Old World monkeys; and from the latter, at a remote period, Man, the wonder and glory of the Universe, proceeded." ("Descent of Man" (Popular Edition), page 255.)英文原著 · 《Darwin and Modern Science》
The same post that brought the enclosed brought Dana's pamphlet on the same subject. (162/1. The pamphlet referred to was published in "Silliman's Journal," Volume XXV., 1863, pages 65 and 71, also in the "Annals and Magazine of Natural History," Volume XI., pages 207-14, 1863: "On the Higher Subdivisions in the Classification of Mammals." In this paper Dana maintains the view that "Man's title to a position by himself, separate from the other mammals in classification, appears to be fixed on structural as well as physical grounds" (page 210). His description is as follows:--英文原著 · 《More Letters of Charles Darwin Volume I》
With respect to atolls, I think mammals would hardly survive VERY LONG, even if the main islands (for as I have said in the Coral Book, the outline of groups of atolls do not look like a former CONTINENT) had been tenanted by mammals, from the extremely small area, the very peculiar conditions, and the probability that during subsidence all or nearly all atolls have been breached and flooded by the sea many times during their existence as atolls.英文原著 · 《The Life and Letters-2》
We might give to a bird the habits of a mammal, but inheritance would retain almost for eternity some of the bird-like structure, and prevent a new creature ranking as a true mammal.英文原著 · 《The Life and Letters-2》
Publication of the "Zoology of the Voyage of H.M.S. 'Beagle'", Part II., "Mammalia", by G.R. Waterhouse, with a "Notice of their habits and ranges", by Charles Darwin.英文原著 · 《Darwin and Modern Science》
Before the game, you eat your calm mammals, your beefs, your muttons.美剧 · 《Modern Family》
By that logic I should answer All the anthropology questions because I'm a mammal.美剧 · 《The Big Bang Theory》
And on a side note, they are one of the few mammals Whose scrotum is in front of the penis.美剧 · 《The Big Bang Theory》
You ever wonder how humans would be different If they evolved from lizards instead of mammals?美剧 · 《The Big Bang Theory》