If you think that opposites attract, you are likely mistaken, or at least that’s what the science says. Over a hundred years ago, researchers first discovered that couples are actually...

Adding more credence to the saying that “birds of a feather flock together” a new study published this week found that friends are as genetically similar as fourth cousins. The...

For Valentine’s Day, we analyzed data from 15,298 real-world couples who had children together and found that people paired with others who were more like themselves than they were different....