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Home > Category Index for Science Quotations > Category Index Q > Category: Quadruped

Quadruped Quotes (4 quotes)

But I think that in the repeated and almost entire changes of organic types in the successive formations of the earth—in the absence of mammalia in the older, and their very rare appearance (and then in forms entirely. unknown to us) in the newer secondary groups—in the diffusion of warm-blooded quadrupeds (frequently of unknown genera) through the older tertiary systems—in their great abundance (and frequently of known genera) in the upper portions of the same series—and, lastly, in the recent appearance of man on the surface of the earth (now universally admitted—in one word, from all these facts combined, we have a series of proofs the most emphatic and convincing,—that the existing order of nature is not the last of an uninterrupted succession of mere physical events derived from laws now in daily operation: but on the contrary, that the approach to the present system of things has been gradual, and that there has been a progressive development of organic structure subservient to the purposes of life.
'Address to the Geological Society, delivered on the Evening of the 18th of February 1831', Proceedings of the Geological Society (1834), 1, 305-6.
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Man … begins life as an ambiguous speck of matter which can in no way be distinguished from the original form of the lowest animal or plant. He next becomes a cell; his life is precisely that of the animalcule. Cells cluster round this primordial cell, and the man is so far advanced that he might be mistaken for an undeveloped oyster; he grows still more, and it is clear that he might even be a fish; he then passes into a stage which is common to all quadrupeds, and next assumes a form which can only belong to quadrupeds of the higher type. At last the hour of birth approaches; coiled within the dark womb he sits, the image of an ape; a caricature of the man that is to be. He is born, and for some time he walks only on all fours; he utters only inarticulate sounds; and even in his boyhood his fondness for climbing trees would seem to be a relic of the old arboreal life.
In The Martyrdom of Man (1876), 393.
Science quotes on:  |  Animal (359)  |  Animalcule (11)  |  Ape (42)  |  Birth (93)  |  Boy (46)  |  Caricature (6)  |  Cell (137)  |  Climbing (4)  |  Cluster (14)  |  Development (289)  |  Evolution (535)  |  Fondness (7)  |  Inarticulate (2)  |  Life (1131)  |  Man (373)  |  Oyster (10)  |  Plant (200)  |  Primordial (9)  |  Relic (6)  |  Sit (47)  |  Sound (90)  |  Tree (171)  |  Walk (67)  |  Womb (14)

So long as the fur of the beaver was extensively employed as a material for fine hats, it bore a very high price, and the chase of this quadruped was so keen that naturalists feared its speedy consideration. When a Parisian manufacturer invented the silk hat, which soon came into almost universal use, the demand for beavers' fur fell off, and this animal–whose habits, as we have seen, are an important agency in the formation of bogs and other modifications of forest nature–immediately began to increase, reappeared in haunts which we had long abandoned, and can no longer be regarded as rare enough to be in immediate danger of extirpation. Thus the convenience or the caprice of Parisian fashion has unconsciously exercised an influence which may sensibly affect the physical geography of a distant continent.
In Man and Nature, (1864), 84.
Science quotes on:  |  Abandon (48)  |  Beaver (7)  |  Bog (5)  |  Chase (13)  |  Extinction (66)  |  Extirpation (2)  |  Forest (107)  |  Fur (6)  |  Geography (27)  |  Hat (9)  |  Increase (146)  |  Naturalist (54)  |  Paris (11)  |  Price (34)  |  Rare (50)

“Bitzer,” said Thomas Gradgrind. “Your definition of a horse.”
“Quadruped. Graminivorous. Forty teeth; namely, twenty-four grinders, four eye-teeth, and twelve incisive. Sheds coat in the Spring; in marshy countries, sheds hoofs, too. Hoofs hard, but requiring to be shod with iron. Age known by marks in mouth.” Thus (and much more) Bitzer.
“Now girl number twenty,” said Mr. Gradgrind. “You know what a horse is.”
Spoken by fictional character Thomas Gringrind in his schoolroom with pupil Bitzer, Hard Times, published in Household Words (1 Apr 1854), Vol. 36, 3.
Science quotes on:  |  Coat (5)  |  Country (147)  |  Definition (192)  |  Hard (99)  |  Horse (49)  |  Iron Age (3)  |  Mark (42)  |  Marsh (6)  |  Mouth (21)  |  Shed (5)  |  Spring (71)  |  Thomas Gradgrind (2)  |  Tooth (26)

Carl Sagan Thumbnail In science it often happens that scientists say, 'You know that's a really good argument; my position is mistaken,' and then they would actually change their minds and you never hear that old view from them again. They really do it. It doesn't happen as often as it should, because scientists are human and change is sometimes painful. But it happens every day. I cannot recall the last time something like that happened in politics or religion. (1987) -- Carl Sagan
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