&quot;Bonding&quot; in this kind of research absolutely doesn&#x27;t mean  the promiscuity is excluded:<p><a href="https:&#x2F;&#x2F;en.wikipedia.org&#x2F;wiki&#x2F;Homosexual_behavior_in_animals" rel="nofollow">https:&#x2F;&#x2F;en.wikipedia.org&#x2F;wiki&#x2F;Homosexual_behavior_in_animals</a><p>&quot;Roughly 60% of all bonobo sexual activity occurs between two or more females.&quot;