In The Selfish Gene, Richard Dawkins[43] proposed honest advertising as the evolutionary explanation for the loss of the baculum. The hypothesis states that if erection failure is a sensitive early warning of ill health (physical or mental), females could have gauged the health of a potential mate based on his ability to achieve erection without […]

by William Buckner. So the human penis is not uniquely long: it is roughly the same length as that of chimps and bonobos, and it scales with body size to about the same degree as most other primates. Its size is not particularly impressive. However, when considering its girth, the human penis might be at […]

Speed of human mating might be behind the lack of a baculum in humans, suggests study tracing bone’s evolution. by Ian Sample | Guardian https://www.theguardian.com/science/2016/dec/14/why-dont-humans-have-a-penis-bone-scientists-may-now-know-baculum It can be as long as a finger in a monkey. In the walrus, it can be two feet long. But the human male has lost it completely. And researchers […]

Study traces evolutionary history of the baculum. By David Shultz. This study has been the first to demonstrate that baculum presence has correlated with intromission duration over the course of primate evolution.

It’s probably the same size as every other man’s, though. by Tom Hickman. Somewhere between gorilla and chimp comes man, neither entirely promiscuous nor entirely monogamous, his penis evolved far beyond those of his distant ancestors but his testicles or at least their firepower probably reduced.

By Suzanne M Harvey. Females need to select high quality males to ensure the best genes for their offspring, and a penis that works predominantly through haemodynamics takes a lot of energy to produce. Therefore this is an honest signal of the most healthy males in the same way that the healthiest stags grow the […]

by Desmond Morris It has been argued that the glans at the tip of the human penis has evolved its unusual design as part of a strategy that will help to defeat female infidelity. If a man’s female partner has been unfaithful and is carrying another male’s seminal fluid inside her vagina, it is a […]

by Gay Talese. “If a woman can stimulate herself to orgasm, she is orgasmic and sexually healthy,” [Betty] Dodson declared. “‘Frigid’ is a man’s word for a woman who cannot have an orgasm in the missionary position in five minutes with only the kind of stimulation that is good for him. We must no longer […]

by Desmond Morris. “It is strange that there is this discrepancy between the male and female as regards the time taken to reach sexual climax and relief from tension.”