Another PDF but in case you’re interested:
The Dawn of the Deed:
The Prehistoric Origins of Sex*
By John A. Long
296 pages | © 2012
*
free ebook for July (Cloth List Price $26.00 | ISBN: 9780226492544*| October 2012)
*
“You are now holding a compromise between a book that you should carry hidden inside an opaque bag, and a sober respectable scientific treatise. It′s a deliciously written account of the evolution of sex, in all of its bizarre manifestations. Read, blush, and enjoy.”—*Jared Diamond, author of Guns, Germs, and Steel
New free e-book every month from the University of Chicago Press ebook
https://press.uchicago.edu/books/freeEbook.html