Stock photo of Chimpanzee dominant male with erect penis, female watching Zambia {Pan.... Available for sale on www.naturepl.com
Swingers | The New Yorker
Complex patterns of signalling to convey different social goals of sex in bonobos, Pan paniscus | Scientific Reports
Male bonobos that have had a fight sometimes perform genital-to-genital touching, known as "penis fencing", as a way of reducing tension. : r/Awwducational
Study sheds light on the function of the penis bone in male competition
How penis bones help primates win the mating game – and why humans might have lost theirs
Why Did Humans Evolve Such Enormous Penises? | IFLScience
Overthrowing the Patriarchy Through Ecstatic Sex - Nautilus
Bonobos, a primate close to humans, is highly sexed and uses sexuality as a means of maintaining social order – New York Daily News
Why DO humans have such large penises? | Daily Mail Online
Zanna Clay on Twitter: "Overall, an impressive sculpture & piece of great ape art, but check out his teeeeny tiny penis! Bonobos actually have some of the longest penises of all primates-
Chimps, bonobos, and the evidence that humans are naturally polygamous | by The Gift Of Fire | Medium
Singing Bonobo. stock image. Image of singer, mammal - 15563115
Bonobos Use the Power of Female Friendship to Overthrow Male Hierarchy
Millions of years ago, we would have had penis bones | Stuff.co.nz
Why did humans evolve big penises but small testicles?
Why Human Penises Lost Their Spines
Zanna Clay on Twitter: "Overall, an impressive sculpture & piece of great ape art, but check out his teeeeny tiny penis! Bonobos actually have some of the longest penises of all primates-
Why is there no "bone" in the human penis? - GIGAZINE