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baculum    
阴茎骨

阴茎骨


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  • Baculum - Wikipedia
    The baculum is an exclusive characteristic of placentals and closely related eutherians, being absent in other mammal clades, and it has been speculated to be derived from the epipubic bones more widely spread across mammals, but notoriously absent in placentals
  • Why Humans Have No Penis Bone | Scientific American
    The baculum is an extra-skeletal bone, which means it is not attached to the rest of the skeleton but instead floats daintily at the end of the penis
  • Human Penis Bone Disappeared With Rise of Monogamy, Succinct Sex
    Most mammals have a penis bone called a baculum, but humans don't A new study sheds light on the history of the baculum, and why ours is missing
  • Humans have no penis bone because sex doesnt last long enough . . .
    The penis bone, or baculum, first evolved in mammals between 145 and 95 million years ago, according to new research from University College London
  • Baculum | Mammalian Skeleton, Rod-Shaped Bone, Penis Bone | Britannica
    Baculum, the penis bone of certain mammals The baculum is one of several heterotropic skeletal elements—i e , bones dissociated from the rest of the body skeleton It is found in all insectivores (e g , shrews, hedgehogs), bats, rodents, and carnivores and in all primates except humans
  • Why humans lost their penis bone | Science - AAAS
    The baculum first evolved between 145 million and 95 million years ago, the team reports online today in the Proceedings of the Royal Society B That means it was present in the most recent common ancestor of all primates and carnivores
  • 8 Hard Facts About the Penis Bone - Mental Floss
    The baculum, also known as the os penis, or penis bone, is something of a mystery Read on to find out what it is, what it's for, and why you might want to wear one around your neck
  • The Baculum was Gained and Lost Multiple Times during Mammalian . . .
    Specifically, 9 branches gained a baculum, and 10 branches lost a baculum in at least 50% of the 1000 iterations of stochastic mapping, with 5 gains and 6 losses occuring in at least 95% of the iterations
  • Baculum - Simple English Wikipedia, the free encyclopedia
    The baculum (also penis bone), is a bone found in the penis of many male mammals It is absent in the human penis, but present in the penises of our close relatives the apes, such as the gorilla and chimpanzee The bone is located along the top of the penis and it aids in sex by keeping it stiff for a long time during the sex act
  • The baculum: Current Biology - Cell Press
    The baculum (os penis) is a bone found within the penis of certain mammals, including many primates, rodents, bats, carnivores, and some insectivores It is an isolated bone, derived from connective tissue and located at the distal end of the penis, above the urethra





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