Family That Walks on All Fours

This episode focuses on a scientific debate about five siblings in a Turkish family who walk on all fours. When, in 2005, scientist Uner Tan labeled them "genetic throwbacks," they became part of the dialogue about a possible missing link to an era when humans walked on all fours. Included: comments from geneticist Sean Carroll and anthropologist Brian Richmond, who disagree with Tan; and interviews with and footage of the family.

Where to watch

You cover 0/985 episodes +22 with the plan · 2%

Your services

With the plan

Not covered

PBS

Subscription

964/985

Watch

Also available on 2

YT

• 

  DirecTV On Demand

  Subscription

  824/985

  Watch
• YT

  YouTube TV

  Subscription

  824/985

  Watch

Every episode is already streaming. Subscribe only while you're watching.

985 episodes · subscribe while you watch, cancel anytime

See your month-by-month plan → Track