Why Don't Humans Have Tails?

Excited for the August 21 eclipse? Visit our Eclipse 2017 page to explore the science, history, and myths of the event. The Curiosity team will be viewing the eclipse alongside NASA in Carbondale, Illinois. Follow us on Facebook for live videos, trivia, and interviews on the big day.

Different animals have developed highly specialized tails over time. For instance, horses can use their tails to swat away flies, while the prehensile tails of new world monkeys can help them grip tree branches as they climb. Humans lack tails because they simply don't need them.

Share the knowledge!

Key Facts In This Video

  1. Human's don't need tails since our center of gravity runs down our spine, which helps us balance the weight of our heads. 01:08

  2. All mammals have a tail at some point in development. 01:53

If you liked this you'll love our podcast! Check it out on iTunes, Stitcher, Google Play Music, SoundCloud, search 'curiosity' on your favorite podcast app or add the RSS Feed URL.

Advertisement