It's not abnormal to consider your significant other your friend as well. Considering you spend so much time together, have integrated your personal lives with one another, and confide in each other, ...

Add Yahoo as a preferred source to see more of our stories on Google. Research by Hungarian academics shows dogs can fill a number of roles, from a child’s playmate to a best friend.Photograph: Getty ...

Dogs have been man's best friend for a very, very long time. Much longer, it turns out, than scientists had previously been able to prove. Two new separate studies have uncovered the oldest known ...

Does it make a difference whether a man’s best friend is male or female? Here is what psychological science has found out.