Marijuana and Male (In)fertility: What Does Cannabis Really Do to Sperm? Human males have a lot of endocannabinoid receptors in their testicles—which react to cannabis use. By Chris Roberts
Digital Sperm Banks? Experts Hesitate to Embrace Male Fertility Startups Direct-to-consumer sperm storage is here. By Gabriela Barkho
Data Should Smash the Biological Myth of Promiscuous Males and Sexually Coy Females Victorian attitudes influenced what scientists thought they were observing about sexual behaviors in the animal world. But modern techniques reveal the myth for what it is. By Zuleyma Tang-Martinez