| 单词 | sexual selection |
| 释义 | > as lemmassexual selection sexual selection n. the evolutionary theory, originally proposed by Darwin, of the preferential reproduction of male organisms with characteristics that favour their success in competition with other males, either directly or through mate choice by females, intended to account for the development of features such as large size, elaborate horns, ornamental coloration, etc. ΚΠ 1859 C. Darwin Origin of Species iv. 88 And this leads me to say a few words on what I call Sexual Selection. This depends, not on a struggle for existence, but on a struggle between the males for the possession of the females; the result is not death to the unsuccessful competitor, but few or no offspring. 1932 T. H. Morgan Sci. Basis Evol. vii. 154 The theory of sexual selection..assumes that the female continues to select in successive generations the more ornamental males. 2002 M. D. Greenfield Signalers & Receivers iv. 225 Were..males performing a stereotypical leg or wing movement for visual display or evaporation of pheromones, sexual selection may have favored stridulatory, tymbal, or percussional devices by which the movements yielded sound. < as lemmas |
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