 Dr. Wallace, who has had such immense experience in breeding Bombyx cynthia, is convinced that the females evince no choice or preference. He has kept above 300 of these moths living...  Tropical Nature, and Other Essays - Page 201by Alfred Russel Wallace - 1878 - 356 lehteFull view - About this book
 | 1878 - 616 lehte
...there is much direct evidence to the contrary." In the case of the silkmoth Иг. Darwin admits that " the females appear not to evince the least choice in regard to their partners." On the principle of natural selection among a number of rival male butterflies, " the most vigorous... | |
 | Alfred Russel Wallace - 1891 - 518 lehte
...male to another, the pairing must be left to mere chance, and this does not appear probable" (Ie p. 317). But he has just said : " The males sometimes...persevering, wins her. How can there be chance in this 9 Natural selection would here act, as in birds, in perpetuating the strongest and most vigorous males... | |
 | Alfred Russel Wallace - 1891 - 516 lehte
...male to another, the pairing must be left to mere chance, and this does not appear probable" (Ie p. 317). But he has just said: " The males sometimes...Surely the plain inference from all this is, that males and struggle for the almost passive female, and that the ' nost vigorous and energetic, the strongesMvinged... | |
 | St. George Jackson Mivart - 1892 - 480 lehte
...males.'—Vol . ip 400. As to the Bombycida-, he adds:— 'The females lie in an almost torpid state, and appear not to evince the least choice in regard to their partners. This is the case with the common silk-moth (B. mori). Dr. Wallace, who has had such immense experience... | |
 | Charles Darwin - 1896 - 890 lehte
...mouths. The females, as several entomologists have remarked to me, lie in an almost torpid state, and appear not to evince the least choice in regard to their partners. This is the case with the common silk-moth (£. mori), as I have been told by some continental and... | |
 | 1905 - 462 lehte
...mouths. The females, as several entomologists have remarked to me, lie in an almost torpid state, and appear not to evince the least choice in regard to their partners. This is the case with the common silkmoth (B. morf), as I have been told by some Continental and English... | |
 | Charles Darwin - 1981 - 964 lehte
...mouths. The females, as several entomologists have remarked to me, lie in an almost torpid state, and appear not to evince the least choice in regard to their partners. This is the case with the common silk-moth (B. mori), as I have been told by some continental and English... | |
 | John Holmes Agnew, Walter Hilliard Bidwell - 1871 - 828 lehte
...— vol. ip 400. As to the Bombycidae he adds : — " The females lie in an almost torpid state, and appear not to evince the least choice in regard to their partners. This is the case with the common silk-moth (B. mart). Dr. Wallace, who has had such immense experience... | |
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