If such a tumor arises during intra-uterine life, pseudohermaphroditismus results; if it occurs in a little boy, sexual precocity develops with genitalia of adult size and corresponding secondary sex characteristics; if the adult male is affected, gynecomastia, and perhaps even lactation and other evidences of femininization appear; the adult female is masculinized so-called virilism or hirsutism and amenorrhea, heterosexual hypertrichosis, enlarged clitoris and atrophy of the mammary tissue develop. When a little girl is afflicted by such a tumor, however, pseudo-sexual precocity occurs, the outstanding characteristics of which are the very early appearance of pubic hair and hypertrophy of the clitoris causing it to resemble a small penis. It,therefore, seemed desirable to determine more precisely the effect of thyroxine given orally as the fre eamino acid, by administering large daily doses for a comparativelylong period. Most users should sign in with their email address.
The Surprising Power of Fake Sex
You've read 1 of 2 free monthly articles. Learn More. D ecades ago, behavioral neurobiologist David Crews read a strange report about the desert grassland whiptail, a small, slender lizard that lives in the sagebrush of the American Southwest. The paper claimed that the species was entirely female, and reproduced by cloning. It tested the limits of what Crews felt to be biologically plausible in higher vertebrates. But he was curious, and a friend who was going to New Mexico offered to collect some from the wild. Crews, who at the time was at the Harvard Museum of Comparative Zoology, installed a half-dozen whiptail lizards in glass tanks in his animal room.
When Pseudosex Is Better Than the Real Thing
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