Friendships often takes a back seat to romantic relationships. Here's a look at how Americans experience platonic love.

We only have 4 real friends, and 14 that care at all. Follow BI Video: On Twitter More from News In the early '90s, anthropologist Robin Dunbar proposed that a human being has the capacity to have ...

We only have 4 real friends, and 14 that care at all. Produced by Joe Avella Follow BI Video: On Facebook More from Tech In the early '90s, anthropologist Robin Dunbar proposed that a human being ...

Shared traits, interests, and backgrounds help a lot, says Robin Dunbar, an evolutionary psychologist and author of Friends: Understanding the Power of Our Most Important Relationships.

The study of more than 2,000 people, commissioned by Fisherman’s Friend and analysed by anthropologist and Oxford University professor Robin Dunbar, found that it takes an average of 34 hours of ...