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Science 17 September 1982:
Vol. 217. no. 4565, pp. 1159 - 1160
DOI: 10.1126/science.7202252
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Articles

Science, Vol 217, Issue 4565, 1159-1160
Copyright © 1982 by American Association for the Advancement of Science

articles

Female control of male reproductive function in a Mexican Snake

WR Garstka

Male Thamnophis melanogaster court immediately when exposed to estrogen-treated, attractive females and continue courting for 6 to 8 days. Males exposed to estrogen-treated females will court both intact and ovariectomized females. These males undergo a period of testicular recrudescence, whereas males exposed only to ovariectomized females do no. Sexual attractivity can be induced in female T. melanogaster without estrogen treatment by heavy feeding, which results in significant increases in liver size and activity.




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Science. ISSN 0036-8075 (print), 1095-9203 (online)