In a recent talk on PBS TV, American biologist, Dr Joe Hanson provides an answer to the question - are we all related? SIMON O'CONNOR/STUFF Roger Hanson discusses DNA and how we are all related. READ MORE:* Roger Hanson: Deepwater Horizon revisited* Roger Hanson: How you figure out the age of the universe* New focus for Marlborough Māori as bones uncover links to maternal ancestorsSince the total number of people who have ever lived is only 107 billion, there is clearly something amiss. Every human alive today shares a common ancestor in their family tree who lived 3,000 years ago. The consequence is, as Joe Hanson puts it, "we really are all family".

Source: Stuff February 07, 2019 00:00 UTC