TIL the Bororo are one of the few groups of people who all have the same blood type. They all have type O blood.

https://en.wikipedia.org/wiki/Bororo_people



Submitted January 29, 2015 at 04:46PM by Quouar http://www.reddit.com/r/todayilearned/comments/2u2kj1/til_the_bororo_are_one_of_the_few_groups_of/