COVER This image depicts a variety of sperm trying to reach an oocyte. Some sperm are abnormal, and some of those are patched up—alluding to treatments that can overcome some types of sperm abnormalities to achieve viable offspring. Conversely, some healthy sperm are blocked by walls, which represent contraception. See the special section on human reproduction beginning on page 148.
Illustration: Sara Gironi Carnevale
COVER This image depicts a variety of sperm trying to reach an oocyte. Some sperm are abnormal, and some of those are patched up—alluding to treatments that can overcome some types of sperm abnormalities to achieve viable offspring. Conversely, some healthy sperm are blocked by walls, which represent contraception. See the special section on human reproduction beginning on page 148.
Illustration: Sara Gironi Carnevale