Anatomy: How Humans Lost Their Tails

  • Daniel Gonzalez Cappa
  • BBC world news

photo credit, Getty Images

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Apes have tails, unlike humans and great apes

Have you ever looked at the back of your body and wondered where your tail is?

It sounds like a joke or the kind of question a child would innocently ask. But for scientists, this is serious business.

After all, if humans are so biologically similar to apes, why do they have tails and we don’t?

“That’s a really good point,” agrees Bo Xia, a graduate student in stem cell biology at New York University’s Grossman School of Medicine.

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