home | login | register | DMCA | contacts | help | donate |      

A B C D E F G H I J K L M N O P Q R S T U V W X Y Z
А Б В Г Д Е Ж З И Й К Л М Н О П Р С Т У Ф Х Ц Ч Ш Щ Э Ю Я


my bookshelf | genres | recommend | rating of books | rating of authors | reviews | new | форум | collections | читалки | авторам | add



MALES, AS FEMALES SEE THEM

The rise and fall of the third chimpanzee

chimp

man

orangutan

gorilla

Humans and great apes differ with respect to the relative body size of males and females, penis length, and testis size. The main circles represent the body size of the male of each species, relative to that of the female of the same species. Female body size is arbitrarily shown as the same for all species at upper right. Thus, chimps of both sexes weigh about the same; men are slightly larger than women; but male orangutans and gorillas are much bigger than females. The arrows on the male symbols are proportional to the length of the erect penis, while the twin circles represent testis weight relative to that of the body. Men have the longest penis, chimps the largest testes, and orangutans and gorillas the shortest penis and smallest testes.


THREE THE EVOLUTION OF HUMAN SEXUALITY | The rise and fall of the third chimpanzee | FEMALES, AS MALES SEE THEM