Once they’re inside the female reproductive organs, sperm pull out all the stops to outrace their rivals to the egg–especially if the opponent comes from another male. The process that determines which sperm wins, called “postcopulatory sexual selection,” has been difficult to tease out, until now. [More]
If our reporting has informed or inspired you, please consider making a donation. Every contribution, no matter the size, empowers us to continue delivering accurate, engaging, and trustworthy science and medical news. Independent journalism requires time, effort, and resources—your support ensures we can keep uncovering the stories that matter most to you.
Join us in making knowledge accessible and impactful. Thank you for standing with us!