Sex-specific organ shape is usually thought to depend on sex chromosomes or hormones. Now it emerges that crosstalk between organs sculpts sex-specific 3D gut shape in flies, identifying a new way to ...

We humans love putting things in boxes. Assigning simple categories makes us feel comfortable – but all too often, biology comes along to ruin the fun. Sex is often described in simplistic, binary ...

Surprising pattern: The genetic programmes responsible for the development of sex-specific organ characteristics in mammals are turned on almost exclusively late in the development of the organs, in ...

The development of sex-specific characteristics is frequently seen in mammals. These characteristics stem from the activation of corresponding genetic programs that until now have been largely ...

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Some health officials say mpox cases in Congo appear to be "stabilizing"—a possible sign that the main epidemic for which the World Health Organization made a global emergency declaration in August ...