Fisherian runaway or runaway selection is a sexual selection mechanism proposed by the mathematical biologist Ronald Fisher in the early 20th century, to account for the evolution of exaggerated male ornamentation by persistent, directional female choice.

We reveal the penis myths around size. Info on penile physiology, biochemistry and anatomy.

Little teens in Africa share a common bond with American mans. During female circumcision, their genitals are also cut. Their natural genitals are seen as …

Comparing gorillas and chimpanzees proves that women prefer big penises and big ejaculations. Compare primates and humans: Sexual behavior, Penis …

Throw a rock at any sex education site or service, ask what the most common question we get is from men and we’ll all tell you that it’s about penis size. We don’t imagine with this piece we’ll never get asked again, but we’re hoping these answers get you guys better filled in so you can feel good about yourselves, your penises and whatever you

The size of the penis and its relation to the size of the vagina

What women want as far as penis size is concerned

Homosexual behavior in s is sexual behavior among non-human species that is interpreted as homosexual or bisexual.This may include same-sex sexual activity, courtship, affection, pair bonding, and parenting among same-sex pairs.

This picture of two mating insects comes with an unexpected twist. The one on top is a female, and she has a penis. The one on the bottom is a male, and he has the equivalent of a vagina.

The End of the Penis Size Debate – What Women Know and Men Don’t. Use this table of contents to get an overview of the chapters. Click on any title or page number.