{"id":137561,"date":"2013-10-07T08:00:59","date_gmt":"2013-10-07T06:00:59","guid":{"rendered":"http:\/\/www.madrimasd.org\/blogs\/biologia_pensamiento\/?p=137561"},"modified":"2014-01-22T10:00:17","modified_gmt":"2014-01-22T08:00:17","slug":"algo-incomprensible-en-el-parrafo-tricentesimo-nonagesimo-tercero-de-el-origen-de-las-especies","status":"publish","type":"post","link":"https:\/\/www.madrimasd.org\/blogs\/biologia_pensamiento\/2013\/10\/07\/137561","title":{"rendered":"Algo incomprensible en el p\u00e1rrafo tricent\u00e9simo nonag\u00e9simo tercero de El Origen de las Especies"},"content":{"rendered":"

P\u00e1rrafo cuya primera frase es incomprensible:<\/p>\n

Everyone who believes in slow and gradual evolution, will of course admit that specific changes may have been as abrupt and as great as any single variation which we meet with under nature, or even under domestication<\/em><\/p>\n

\u00a0<\/em><\/p>\n

(Todo el que crea en una evoluci\u00f3n lenta y gradual, admitir\u00e1 sin duda que los cambios espec\u00edficos pueden haber sido tan bruscos y grandes como cualquier variaci\u00f3n aislada de las que nos encontramos en la naturaleza, o hasta en estado dom\u00e9stico)<\/p>\n

\u00a0<\/em><\/p>\n

\u00a0<\/em>\u00bfQu\u00e9 significa to believe in slow and gradual evolution? <\/em>\u00bf<\/em>Qu\u00e9 significa specific changes? \u00bf<\/em>Qu\u00e9 extra\u00f1a relaci\u00f3n puede haber entre slow and gradual evolution <\/em>en la primera parte y as abrupt and as great as any single variation, <\/em>en la segunda?, \u00bfAcaso no es slow and gradual<\/em>, lo contrario de as abrupt and as great<\/em> as any single variation which we meet with under nature<\/em>?<\/p>\n

A continuaci\u00f3n una confusa frase con tres part\u00edculas de probabilidad en dos l\u00edneas:<\/p>\n

Of these latter variations several may be attributed to reversion; and the characters which thus reappear were, it is probable, in many cases at first gained in a gradual manner<\/em><\/p>\n

Pero el objetivo, sembrar confusi\u00f3n,\u00a0 lo vemos m\u00e1s claro en el an\u00e1lisis de otro p\u00e1rrafo\u2026<\/a>\u2026<\/p>\n

393<\/em><\/p>\n

Everyone who believes in slow and gradual evolution, will of course admit that specific changes may have been as abrupt and as great as any single variation which we meet with under nature, or even under domestication. But as species are more variable when domesticated or cultivated than under their natural conditions, it is not probable that such great and abrupt variations have often occurred under nature, as are known occasionally to arise under domestication. Of these latter variations several may be attributed to reversion; and the characters which thus reappear were, it is probable, in many cases at first gained in a gradual manner. A still greater number must be called monstrosities, such as six-fingered men, porcupine men, Ancon sheep, Niata cattle, etc.; and as they are widely different in character from natural species, they throw very little light on our subject. Excluding such cases of abrupt variations, the few which remain would at best constitute, if found in a state of nature, doubtful species, closely related to their parental types.<\/em><\/p>\n

\u00a0<\/em><\/p>\n

Todo el que crea en una evoluci\u00f3n lenta y gradual, admitir\u00e1 sin duda que los cambios espec\u00edficos pueden haber sido tan bruscos y grandes como cualquier variaci\u00f3n aislada de las que nos encontramos en la naturaleza, o hasta en estado dom\u00e9stico. Pero, como las especies son m\u00e1s variables cuando est\u00e1n domesticadas o cultivadas que en sus condiciones naturales, no es probable que tales variaciones grandes y bruscas hayan ocurrido con frecuencia en la Naturaleza, como se sabe que surgen accidentalmente en domesticidad. De estas \u00faltimas variaciones, algunas pueden atribuirse a reversi\u00f3n, y los caracteres que de este modo reaparecen, en muchos casos, fueron probablemente obtenidos al principio de un modo gradual. Un n\u00famero todav\u00eda mayor merecen el nombre de monstruosidades, como los hombres de seis dedos, los hombres puercos espines, las ovejas ancon, las vacas \u00f1atas, etc.; pero como difieren mucho por sus caracteres de las especies naturales, arrojan poca luz sobre nuestro asunto. Excluyendo estos casos de variaciones bruscas, los pocos restantes, si se encontrasen en estado natural, constituir\u00edan, a lo sumo, especies dudosas muy afines con sus tipos progenitores.<\/em><\/p>\n

Lectura aconsejada:<\/p>\n