Add Yahoo as a preferred source to see more of our stories on Google. Each of our friends brings out a different part of us. Author C.S. Lewis wrote about this truth in his book, The Four Loves. But ...

Q. I know you said that you want more questions about friendship and I have one. First off, I’m 18 and I will be entering college in September! I’m so excited about this new change in my life. Anyway, ...

Robin Dunbar is a professor of anthropology at the University of Oxford, a renowned evolutionary psychologist and author of Friends: Understanding the Power of Our Most Important Relationships.