An Ivy League professor and self-described animal rights activist promoted a pro-bestiality study on Thursday, calling it “thought-provoking.”

Princeton University bioethics professor Peter Singer shared the study from the Journal of Controversial Ideas, which he co-founded, saying the article challenges society’s “taboo” against having sex with animals.

“Another thought-provoking article is ‘Zoophilia Is Morally Permissible’ by Fira Bensto (pseudonym), which is just out in the current issue of [the Journal of Controversial Ideas],” Singer said in a post on X.

“This piece challenges one of society’s strongest taboos and argues for the moral permissibility of some forms of sexual contact between humans and animals. This article offers a controversial perspective that calls for a serious and open discussion on animal ethics and sex ethics,” he added.

Singer told Fox News Digital that the journal he co-edits “pushes back against ‘cancel culture’ by providing an outlet for controversial ideas, which authors can publish under a pseudonym.”