The walrus has the world's largest baculum.

PICS: Hail To Thee, Noble Baculum: 10 Facts About The Penis Bone

When compared with other mammals, humans are kind of weird. We stand upright, we’re mostly hairless and we don’t have bones in our penises. That’s right — most placental mammals have a penis bone, or baculum. Just because we don’t have them, though, doesn’t mean we shouldn’t know more about them. To help out with that, here are some bacu-facts you can whip out at a party!

spider monkey, baculum, fact, penis bone
Photo: Ewcik65/Flickr
gorilla, baculum, penis bone, strange facts
Photo: Kabir Bakie/Wikimedia Commons
horses, baculum, penis bone, humans
Photo: Seth Zeigler/Nokota Horse Conservancy
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Illustrations: William L. Brudon
lion, clitoris, baculum, baubellum
Photo: Relic38/Wikimedia Commons
raccoon, baculum, penis bone, coon dong, coon dick
Photo: Paxson Woelber/Wikimedia Commons
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Painting: Lucas Cranach the Elder, 1526
badger, tie pin, baculum, penis bone
Photo: Peter Trimming/Flickr
walrus, longest baculum, baculum, penis bone, weird facts
Photo: Captain Budd Christman, NOAA Corps
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Courtesy: Amazon