{"id":137783,"date":"2013-12-06T08:00:12","date_gmt":"2013-12-06T06:00:12","guid":{"rendered":"http:\/\/www.madrimasd.org\/blogs\/biologia_pensamiento\/?p=137783"},"modified":"2013-10-24T10:22:58","modified_gmt":"2013-10-24T08:22:58","slug":"conjeturas-en-el-parrafo-cuadrigentesimo-vigesimo-octavo-de-el-origen-de-las-especies","status":"publish","type":"post","link":"https:\/\/www.madrimasd.org\/blogs\/biologia_pensamiento\/2013\/12\/06\/137783","title":{"rendered":"Conjeturas en el p\u00e1rrafo cuadrigent\u00e9simo vig\u00e9simo octavo de El Origen de las Especies"},"content":{"rendered":"<p>Como tantas veces el autor se contradice y aqu\u00ed indica que no pretende hacer conjeturas al principio de un p\u00e1rrafo cuyo contenido es pura conjetura.<\/p>\n<p>&nbsp;<\/p>\n<p>&nbsp;<\/p>\n<p><em>\u00a0<\/em><\/p>\n<p style=\"text-align: justify;\"><em>\u00a0<\/em><\/p>\n<p style=\"text-align: justify;\"><em>\u00a0<\/em><\/p>\n<p style=\"text-align: justify;\"><em>428<\/em><\/p>\n<p style=\"text-align: justify;\"><em>By what steps the instinct of F. sanguinea originated I will not pretend to conjecture. But as ants which are not slave-makers, will, as I have seen, carry off pupae of other species, if scattered near their nests, it is possible that such pupae originally stored as food might become developed; and the foreign ants thus unintentionally reared would then follow their proper instincts, and do what work they could. If their presence proved useful to the species which had seized them\u2014if it were more advantageous to this species, to capture workers than to procreate them\u2014the habit of collecting pupae, originally for food, might by natural selection be strengthened and rendered permanent for the very different purpose of raising slaves. When the instinct was once acquired, if carried out to a much less extent even than in our British F. sanguinea, which, as we have seen, is less aided by its slaves than the same species in Switzerland, natural selection might increase and modify the instinct\u2014always supposing each modification to be of use to the species\u2014until an ant was formed as abjectly dependent on its slaves as is the Formica rufescens.<\/em><\/p>\n<p style=\"text-align: justify;\"><em>\u00a0<\/em><\/p>\n<p style=\"text-align: justify;\"><em>No pretender\u00e9 conjeturar por qu\u00e9 grados se origin\u00f3 el instinto de<\/em> F. sanguinea.<em> Pero, como las hormigas que no son esclavistas, se llevan las ninfas de otras especies si est\u00e1n esparcidas cerca de sus hormigueros, como lo he visto yo; es posible que estas ninfas, primitivamente almacenadas como comida, pudieron llegar a desarrollarse, y estas hormigas extra\u00f1as, criadas as\u00ed involuntariamente, seguir\u00edan entonces sus propios instintos y har\u00edan el trabajo que pudiesen. Si su presencia result\u00f3 \u00fatil a la especie que las habla cogido -si era m\u00e1s ventajoso para esta especie capturar obreros que procrearlos-, la costumbre de recolectar ninfas, primitivamente para alimento, pudo por selecci\u00f3n natural ser reforzada y hecha permanentemente para el muy diferente fin de criar esclavas. Una vez adquirido el instinto -aun cuando alcanzase un desarrollo menor que en nuestra <\/em>F. sanguinea<em> inglesa, que, como hemos visto, es menos ayudada por sus esclavas que la misma especie en Suiza-, la selecci\u00f3n natural pudo aumentar y modificar el instinto -suponiendo siempre que todas las modificaciones fuesen \u00fatiles para la especie-, hasta que se form\u00f3 una especie de hormiga, que depende tan abyectamente de sus esclavas, como la <\/em>Formica rufescens.<\/p>\n<p style=\"text-align: justify;\">\n<p>Lectura aconsejada:<\/p>\n<ul>\n<li><a href=\"https:\/\/digital.csic.es\/handle\/10261\/76630\">\u00a0Manual para detectar la impostura cient\u00edfica: Examen del libro de Darwin por Flourens.<\/a> Digital CSIC, 2013. 225 p\u00e1ginas.<\/li>\n<\/ul>\n<p>&nbsp;<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Como tantas veces el autor se contradice y aqu\u00ed indica que no pretende hacer conjeturas al principio de un p\u00e1rrafo cuyo contenido es pura conjetura. &nbsp; &nbsp; \u00a0 \u00a0 \u00a0 428 By what steps the instinct of F. sanguinea originated I will not pretend to conjecture. But as ants which are not slave-makers, will, as I have seen, carry off pupae of other species, if scattered near their nests, it is possible that such pupae originally stored as food might become developed; and the foreign ants thus unintentionally reared would then follow their proper instincts, and do what work they\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":[14293,6720],"tags":[22770],"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\/137783"}],"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=137783"}],"version-history":[{"count":2,"href":"https:\/\/www.madrimasd.org\/blogs\/biologia_pensamiento\/wp-json\/wp\/v2\/posts\/137783\/revisions"}],"predecessor-version":[{"id":137801,"href":"https:\/\/www.madrimasd.org\/blogs\/biologia_pensamiento\/wp-json\/wp\/v2\/posts\/137783\/revisions\/137801"}],"wp:attachment":[{"href":"https:\/\/www.madrimasd.org\/blogs\/biologia_pensamiento\/wp-json\/wp\/v2\/media?parent=137783"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.madrimasd.org\/blogs\/biologia_pensamiento\/wp-json\/wp\/v2\/categories?post=137783"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.madrimasd.org\/blogs\/biologia_pensamiento\/wp-json\/wp\/v2\/tags?post=137783"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}