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Researchers find gene for rooster’s sex organ size

| | June 7, 2013

The following is an excerpt.

Given the chicken’s agricultural importance, scientists long knew that, like 97% of bird species, roosters didn’t have a significant penis—at least, not one large enough to deliver semen deep inside a female’s reproductive tract. And a new study published today in Current Biology found that the activity of a single gene is enough to literally dis-member a chicken’s penis during embryonic development.

Read the full story here: Single Gene Explains How the Rooster Lost His Penis

The GLP aggregated and excerpted this article to reflect the diversity of news, opinion, and analysis. Click the link above to read the full, original article.
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