“The ‘vaginal friction’ hypothesis,” Brassey explains to Inverse, referring to one theory for the function of the baculum, “is based on the idea that the rigid baculum bone might help stiffen the ...

Compared to the rest of animals on Earth, human beings are weird when it comes to sex. Walruses, chimps, and many other mammals have a sexual tool that human men lack: a penis bone. Scientists know ...

A new study suggests that monogamy and how long humans have sex may be the reason why men don’t have bones in their penises, while other male mammals like bears, chimps and gorillas do. The study, ...

Most people are aware that human males do not have calcified bones in their penis. If this seems obvious, did you know that most other species of mammal have a bone in their penis? Well they do, and ...

WASHINGTON — Biblical Archaeology Review will hold a press conference at 10 AM EDT on Tuesday, August 11, to announce a shocking but valid interpretation concerning the creation of the first ...

The following essay is reprinted with permission from The Conversation, an online publication covering the latest research. One of the most weird and wonderful products of evolution is the penis bone, ...

Even though many mammals, including our closest primate relatives, exhibit the presence of penis bones, humans seem to be the exception. Recently, scientists have announced that they have discovered ...

Chimpanzees have them. Raccoons have them. Walruses have two-foot-long specimens. So why don’t human men have penis bones? British researchers think they’re closer to an answer. “Monogamy may have ...

Matilda Brindle receives funding from the London NERC DTP (NE/L002485/1). One of the most weird and wonderful products of evolution is the penis bone, or baculum. The baculum is an extra-skeletal bone ...

Scientists have discovered why humans do not have a penis bone, unlike chimpanzees, bears and most other mammals. The penis bone, or baculum, first evolved in mammals between 145 and 95 million years ...