Voicing the need to consider sex-specific differences in research.

Researchers are exploring sex differences in experimental models of both development and disease-but are we doing enough? In this collection of Voices, we celebrate researchers who are asking this question and starting to offer mechanistic clues on sexually dimorphic differences seen in interorgan communication, metabolic disease, neurological disorders, and more.
Competing Interests: Declaration of interests The authors declare no competing interests.
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