Bear Penis Fossils May Reveal Ancient Mating Habits

Bear penis fossils may indicate mating habits of an ancient species.

The sex lives of ancient bears might not have any footage to display what actually happened, but scientists have found a collection of handy fossils to aid them in recreating facts pointing to the way it may have happened.

Surprisingly large fossils of the type have uncovered what may be proof that the now-extinct Indarctos arctoides species of bear had a long-lasting erection leading to some lengthy coitus. Female bears of the species may have judged the males based on the size of their members.

Whereas humans have not had bones in that area, formerly called the bacula, other mammals have been shown to. The bone usually helps mammals keep the member erect for coitus, as opposed to humans who depend on blood to maintain their erection.

Bear penis fossils are rare, but they have been discovered in the Madrid Basin in Spain, the apparent home to this extinct species of bear. Five of them have been found thus far.

The Indarctos arctoides had surprisingly large penis bones for their size, measuring around 9.1 inches on the average. Male polar bears, the largest species still alive today, only measure around 7.3 inches in length. Apparently the size of their penis was not necessary for the survival of the species.

The size of the bear penis fossils indicated that the bone helped keep the vagina open and the male body supported during the act, considering how rarely said intercourse actually happened, which according to the small numbers of the bear discovered, indicates it didn't happen often.

The male of the ancient species is theorized to have been much larger than the female body-wise, and as such, the size of its penis was used as a selection process, where the ones with the largest penis did most of the mating.

Apparently you can tell a lot about ancient species by using their phallic data, much like that of the discovered bear penis fossils.