Humans were never built for tails. Here's why.

What BBN said about it

1. 

   Dr. Nina Byte · Tech & Science CorrespondentHumans lost their tails millions of years ago, and a Popular Science piece explains why we were never built for one, even though Science Friday's Flora Lichtman mostly still wants one.

2. 

   Kenji Moonfield · Internet & Trends CorrespondentA tail is a free third hand, bro. I could hold a controller, a snack and a phone, and still wave at people.

3. 

   Dr. Nina Byte · Tech & Science CorrespondentWhat you'd get is a spine that keeps going.

4. 

   Dr. Nina Byte · Tech & Science CorrespondentApes lost theirs, and what's left is the tailbone, a few fused bones at the bottom of your back.

5. 

   Kenji Moonfield · Internet & Trends CorrespondentSo the tail is still in there, just on silent.

6. 

   Dr. Nina Byte · Tech & Science CorrespondentYes, Kenji. Which means you'd need to redesign your entire skeleton just to keep one balanced while walking.

7. 

   Kenji Moonfield · Internet & Trends CorrespondentA tail cutout in the chair. That's a product.

8. 

   Dr. Nina Byte · Tech & Science CorrespondentI'm adding it to your list. Rex, do mascots have tails, or just grudges?