Si alguien hab\u00eda llegado hasta aqu\u00ed tom\u00e1ndose el contenido de este libro en serio, ha llegado el momento de reflexionar. Lo que aqu\u00ed dice es doctrina, dogma. No hay ciencia por ning\u00fan lado.<\/p>\n
800<\/em><\/p>\n \u00a0<\/em><\/p>\n \u00a0<\/em><\/p>\n There is no reason why the principles which have acted so efficiently under domestication should not have acted under nature. In the survival of favoured individuals and races, during the constantly recurrent Struggle for Existence, we see a powerful and ever-acting form of Selection. The struggle for existence inevitably follows from the high geometrical ratio of increase which is common to all organic beings. This high rate of increase is proved by calculation\u2014by the rapid increase of many animals and plants during a succession of peculiar seasons, and when naturalised in new countries. More individuals are born than can possibly survive. A grain in the balance may determine which individuals shall live and which shall die\u2014which variety or species shall increase in number, and which shall decrease, or finally become extinct. As the individuals of the same species come in all respects into the closest competition with each other, the struggle will generally be most severe between them; it will be almost equally severe between the varieties of the same species, and next in severity between the species of the same genus. On the other hand the struggle will often be severe between beings remote in the scale of nature. The slightest advantage in certain individuals, at any age or during any season, over those with which they come into competition, or better adaptation in however slight a degree to the surrounding physical conditions, will, in the long run, turn the balance.<\/em><\/p>\n \u00a0<\/em><\/p>\n No hay motivo para que las leyes que han obrado eficazmente en estado dom\u00e9stico no lo hayan hecho en estado natural. En la supervivencia de los individuos y razas favorecidas durante la incesante lucha por la existencia vemos una forma poderosa y constante de selecci\u00f3n. La lucha por la existencia resulta inevitablemente de la elevada raz\u00f3n geom\u00e9trica de propagaci\u00f3n, que es com\u00fan a todos los seres org\u00e1nicos. La gran rapidez de propagaci\u00f3n se prueba por el c\u00e1lculo, por la r\u00e1pida propagaci\u00f3n de muchos animales y plantas durante una serie de temporadas especialmente favorables, y cuando se los naturaliza en nuevos pa\u00edses. Nacen m\u00e1s individuos de los que pueden sobrevivir. Un grano en la balanza puede determinar qu\u00e9 individuos hayan de vivir y cu\u00e1les hayan de morir, qu\u00e9 variedad o especie haya de aumentar en n\u00famero de individuos y cu\u00e1l haya de disminuir o acabar por extinguirse. Como los individuos de una misma especie entran por todos conceptos en competencia la m\u00e1s rigurosa, la lucha ser\u00e1 generalmente m\u00e1s severa entre las variedades de una misma especie, y seguir\u00e1 en severidad entre las especies de un mismo g\u00e9nero. Por otra parte, muchas veces ser\u00e1 severa la lucha entre seres alejados en la escala de la Naturaleza. La m\u00e1s peque\u00f1a ventaja en ciertos individuos, en cualquier edad o estaci\u00f3n, sobre aquellos con quienes entran en competencia, o la mejor adaptaci\u00f3n, por peque\u00f1o que sea el grado, a las condiciones f\u00edsicas ambientes, har\u00e1n a la larga inclinar la balanza a su favor.<\/em><\/p>\n Lectura aconsejada:<\/p>\n Si alguien hab\u00eda llegado hasta aqu\u00ed tom\u00e1ndose el contenido de este libro en serio, ha llegado el momento de reflexionar. Lo que aqu\u00ed dice es doctrina, dogma. No hay ciencia por ning\u00fan lado. 800 \u00a0 \u00a0 There is no reason why the principles which have acted so efficiently under domestication should not have acted under nature. In the survival of favoured individuals and races, during the constantly recurrent Struggle for Existence, we see a powerful and ever-acting form of Selection. The struggle for existence inevitably follows from the high geometrical ratio of increase which is common to all organic beings.\u2026<\/p>\n","protected":false},"author":86,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"ngg_post_thumbnail":0},"categories":[467,14303,14293,22621,6720,449,488,498,22622,463,448,499,6715,14304,22642,8885,22609,2191,22595,521],"tags":[22780],"blocksy_meta":{"styles_descriptor":{"styles":{"desktop":"","tablet":"","mobile":""},"google_fonts":[],"version":4}},"aioseo_notices":[],"_links":{"self":[{"href":"https:\/\/www.madrimasd.org\/blogs\/biologia_pensamiento\/wp-json\/wp\/v2\/posts\/139917"}],"collection":[{"href":"https:\/\/www.madrimasd.org\/blogs\/biologia_pensamiento\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.madrimasd.org\/blogs\/biologia_pensamiento\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.madrimasd.org\/blogs\/biologia_pensamiento\/wp-json\/wp\/v2\/users\/86"}],"replies":[{"embeddable":true,"href":"https:\/\/www.madrimasd.org\/blogs\/biologia_pensamiento\/wp-json\/wp\/v2\/comments?post=139917"}],"version-history":[{"count":8,"href":"https:\/\/www.madrimasd.org\/blogs\/biologia_pensamiento\/wp-json\/wp\/v2\/posts\/139917\/revisions"}],"predecessor-version":[{"id":140098,"href":"https:\/\/www.madrimasd.org\/blogs\/biologia_pensamiento\/wp-json\/wp\/v2\/posts\/139917\/revisions\/140098"}],"wp:attachment":[{"href":"https:\/\/www.madrimasd.org\/blogs\/biologia_pensamiento\/wp-json\/wp\/v2\/media?parent=139917"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.madrimasd.org\/blogs\/biologia_pensamiento\/wp-json\/wp\/v2\/categories?post=139917"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.madrimasd.org\/blogs\/biologia_pensamiento\/wp-json\/wp\/v2\/tags?post=139917"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}\n