We have two contradictory expectations about human biology and behaviour. Given our primate and mammalian ancestry, we must be pretty similar to chimps, monkeys, and even rats. But given our big ...

A study based on a review of genetic and health information from more than 276,000 people finds strong support for a decades-old evolutionary theory that sought to explain aging and senescence. A ...

Men holding high positions within a hierarchical organisation have more offspring than those in other positions within the same organisation. This unexpected result, published this week in Ethology, ...

Male and female reproductive systems allow human reproduction. Fertilisation occurs when a sperm and egg join to form an embryo. An embryo develops into an unborn baby in the uterus during pregnancy.

The book “Advances in Assisted Reproduction Technologies” captures the current and recent advances in assisted reproduction technology in humans and livestock in an easy and comprehensive way for the ...

The slow maturation of human children—often viewed as burdensome in modern parenting—is, in fact, a remarkable evolutionary achievement. Unlike other species, humans remain biologically immature and ...

First it was human embryos. Now scientists are trying to develop another way to modify human DNA that can be passed on to future generations, NPR has learned. Reproductive biologists at Weill Cornell ...

Hormones are secreted by glands in the endocrine system. During puberty, hormones create changes in physical and emotional characteristics. In this video, Greg Foot describes the interaction of FSH, ...