It's not that oral sex has never been seen in bears. Researchers and zookeepers have observed it in several captive bears, but those bears were living in sub-standard conditions, with inadequate mental stimulation. It's possible that, in those cases, it was a marker of stress rather than pleasure. But now, researchers report "the first observations of long‐term, recurrent fellatio in captive brown bears kept in proper conditions" in the journal Zoo Biology.
Over 116 hours of observations were conducted over the course of six years, by a group of researchers led by Agnieszka Sergiel of the Polish Academy of Sciences Department of Wildlife Conservation. They recorded 28 instances of oral sex between the two bears, both male, who lived together in a sanctuary in Croatia. They write:
http://animals.io9.com/why-are-these-bears-having-oral-sex-1590980883/+rtgonzalez
I had no idea.
Over 116 hours of observations were conducted over the course of six years, by a group of researchers led by Agnieszka Sergiel of the Polish Academy of Sciences Department of Wildlife Conservation. They recorded 28 instances of oral sex between the two bears, both male, who lived together in a sanctuary in Croatia. They write:
http://animals.io9.com/why-are-these-bears-having-oral-sex-1590980883/+rtgonzalez
I had no idea.