Human animals have a simple, direct system: copulation and sperm delivery may lead to fertilization of an egg, if the timing is right. Once a sperm joins an egg, the resulting zygote gets implanted on ...

A new article in Ecological and Evolutionary Physiology examines how the immune system and reproduction interact in female mammals, especially during pregnancy, from mating to birth. Lauren E.

Energy intake is a critical determinant of reproductive performance in small mammals, particularly during energetically demanding periods such as lactation. Recent investigations have revealed that ...

I can’t predict the legal fate of abortion in the coming years, but there is one thing I am certain of from my studies of the animal world as an evolutionary biologist. Women won’t stop fighting for ...

Wild animals that have acquired adaptations to maximize their reproductive output in some of the world's most extreme conditions may provide answers to some of the most pressing problems in the field ...