Hakkında
Charles Scott Sherrington İngiliz nörofizyolog, histolog, bakteriyolog ve patolog. 1920'li yıllarda Royal Society başkanlığı yapmıştır. Edgar Adrian ile birlikte 1932 yılında Nobel Fizyoloji veya Tıp Ödülü'nü kazandı
Unvan:
Nörofizyolog
Doğum:
28 Kasım 1857
Ölüm:
4 Mart 1952
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1 okur okuyor.
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Not adaptaion but cooparation
organization of the aggregate mass in fresh directions does not accompany their coherence Organization with differentiation of component units for this and for that, and at the same time co-operation between them one with another so as to serve the unified composite life; that is the kind of complexity which evolution shows to be the more significant. It is an ampler integration. Does such integrated complexity, as we might call it, bring into being anything absolutely new? Does it create anything? Does it, besides extending the range and powers of life, introduce anything which simpler life has not? Is there anything more in man than in amoeba or paramaecium beyond amplification of powers of the latter? Anything different in kind?
Sayfa 132Kitabı okuyor
Though truly even as purely natural it contains for us still strange surprises. It is, for instance, a world where we are hurled along at the rate of 1100 miles a minute without feeling the movement. A world where little globules around us grow to men and women, without occasioning us surprise, I suppose because we never think about it. A self-contradictory world? On the contrary it is tediously law-abiding and monot- onously self-consistent, it might be thought. Its facts, however opposed some of them may seem, have a perennial habit of ultimately agreeing. Its facts are reconcilable to the degree that if not reconcilable we suspect them of not being facts. What can this reconcilability of natural facts connote? Ob- viously, for one thing, that all Nature is a harmony. Nature as we saw includes man. Then man is of the harmony
Sayfa 69Kitabı okuyor
Adaption and overcome
Later this life invaded the land.
Some of our own early stock took part in that invasion. The moving equilibrium of the cells' life in our carly stock was almost literally an energy-eddy in the sea. The water of the sea conditioned it. Its energy-exchanges were based upon the sea. How if cut off from the sea could such a life exist? The Canadian biologist, Archibald Macallum, gave a reading of this riddle. The salts dissolved in our blood today are those of that long past geological epoch. Already in that sea the vertebrate creature, with many of its cells buried in the body's bulk, away from actual touch with the seawater, had evolved a system of branching tubes and a muscular pump, the heart, bringing to each buried cell a blood of salinity similar to that of the archaic sea, a substitute for that sea- water in which its cells had first arisen, to which their ways of life were adapted. When it left the sea altogether for its Odyssey on land, it had but to carry that habit of manufacture with it. It has done so. With that it has crossed mountain ranges and desert sands carrying its own medium with it. It has invaded air as well as land. It runs, and flies, and walks erect. The water of ocean itself has changed from what in that old sea it was. It has changed with the washings of rivers into it for millions of years since then. But the blood, a dynamic equilibrium, has in respect to those salts remained steady. The poet sang, with more literal truth than perhaps he knew, in- voking the sea, "the salt is lodged for ever in, my blood"s That some of them did give up that old ocean allowed the possibility of our becoming what we are
Sayfa 136Kitabı okuyor
. On the other hand for its limb to develop into something utterly different, would be no unlikelihood. What had been for years during a watery existence our apparatus for breathing has now nothing to do with breathing but serves hearing in the air, Evolution can scrap but not revive
Sayfa 135Kitabı okuyor
we are newcommers
It is to be remembered that Earth's periods of time have been of a different order from man's, and her scale of operations of a different order, and that man's cunning in this respect dates but from yesterday.
Sayfa 129Kitabı okuyor
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