Male house finches, Carpodacus mexicanus, vary in plumage coloration from pale yellow to bright red. Mate preferences of wild-caught female house finches relative to male coloration were tested in controlled laboratory experiments. In experiments in which they had a choice of four males, test femal...
The female reproductive axis is one of the first organ systems to age, which has consequences for fertility and overall health. Here, we provide a comprehensive overview of the biological process of female reproductive aging across reproductive organs, t
Biased mating due to female preferences towards certain traits in males is a major mechanism driving sexual selection, and may constitute an important evolutionary force in organisms with sexual reproduction. In birds, although the role of male ornamentation, plumage coloration, genetic dissimilarity, an...
The reproductive system has several unique features that differ from other organ systems, including complex hormonal regulation; age-related changes such as puberty and reproductive senescence; sex-specific characteristics such as spermatogenesis in the male and cyclicity in the female; pronounced species ...
& Finch, C. E. Aging and the regulation of luteinizing hormone in C57BL/6J mice: impaired elevations after ovariectomy and spontaneous elevations at advanced ages. Biol. Reprod. 28, 598–607 (1983). Article CAS PubMed Google Scholar Finch, C. E., Felicio, L. S., Mobbs, C. V. &...
1994a Geographic variation in male ornamentation and female mate preference in the house finch: a compara- tive test of models of sexual selection. Behav. Ecol. 5, 64-73.Hill, G. E. 1994 Geographic variation in male ornamentation and female mate preference in the house ¢nch a comparative...
Sperm storage no-longer functions properly if the female and/or male production of relevant proteins is curtailed. Thus, at least in this one well-studied example we can see clear evidence of co-evolution between the sexes. Sperm storage in birds All birds examined to date have specialized ...
(DEGLOAD vs nondementia: female samples = 4643 genes; male samples = 446 genes) (Fig.1K, Additional file2: Table S2). Among these, upregulated DEGs in the female LOAD group were clustered significantly into pathways related to gliogenesis and glial cell differentiation (Fig.1L), ...
And she prefers the special trills he creates when he sings to her. A male zebra finch changes his song when singing to a female in ways that people can barely detect. But the female finch can tell the difference. Scientists had noticed slight variations in the songs of male zebra finches...
aA male zebra finch changes his song when singing to a female in ways that people can barely detect 一男性斑胸草雀改变他的歌曲,当唱歌到一位女性用人们能几乎没有查出的方式时[translate]