Relationships

We all think we know what it means, but is it possible that monogamy is a bit more complicated than we think it is?

By Michelle Konstantinovsky

"Anyone can be a father, but it takes someone special to be a dad" is a famous quote by baseball player Wade Boggs and lots of men have passed both tests. Learn more about these famous fathers and their offspring with our quiz.

By Kathryn Whitbourne

Much to the shock of kids everywhere, moms are people too! Take this quiz to test your knowledge of all types of mothers, from record-holders to renowned to notorious.

By Alia Hoyt

So, you've got 5,000 Facebook friends? Maybe, but not really. There's a quantifiable number of relationships people can successfully maintain, according to evolutionary anthropologist Robin Dunbar.

By Stell Simonton

Been together for years and assume you are common-law married? Better check the law in your state.

By Patrick J. Kiger

Matchmakers have paired up couples for centuries, and it doesn't seem as though laxer social rules and online dating has slackened their market. From traditional shadchans to professional Cupids, what does the modern matchmaker do?

By Cristen Conger & Kathryn Whitbourne

Dating isn't always easy. Fortunately, we've got apps that make finding partners with peculiar interests a breeze.

By Kate Kershner

Wait. Can you actually do that?

By Cristen Conger

A New York lawyer divorced his wife a few months after marriage without her knowing. They lived together a further 20 years. Don't try this at home.

By Dave Roos

It's kinda tricky, but when you combine positive body image with significant public selfie sharing, it can create a feedback loop with implications for relationships.

By Laurie L. Dove

You may have jokingly told a friend you'll marry them if neither of you is attached at age 30 or 40. Now a new app will allow you to put it in a contract.

By Alia Hoyt

"Happy New Year! Now let's get divorced." The arrival of a new calendar year is expected to bring a jump in divorces, and one UK firm looked into the reasons why.

By Laurie L. Dove

One boyfriend or a bunch of boyfriends? Conventional wisdom asserts that women prefer one mate at a time, but mammals in general are rarely monogamous. Can an evolutionary perspective help clarify some things?

By Colleen Cancio

The news is filled with a never-ending stream of tragedy and cruelty, but also with gestures and acts meant to improve the lives of others -- and the world. Here are 10 of our favorites.

By Maria Trimarchi

When horrific events such as school shootings and terrorist attacks happen, they're covered non-stop in the media. You can't shield your child from every mention of tragedies 24/7, so what's the best way to discuss sensitive subjects?

By Maria Trimarchi

You know these people. They dart in front of you when you're checking out at the store. They cut you off on the highway with nary a signal. Are they just jerks, or could something else be going on with them?

By Kate Kershner

When famous people are caught in torrid romantic entanglements, it's not just tabloid fodder. It also can put a hard stop on career ambitions for both parties.

By Jacob Clifton

Ever since Beyonce publicly revealed her "baby bump" in 2011, tabloids and blogs tracked her growing belly with rapt attention, making Beyonce one of the most high-profile new moms of the 21st century. The following famous parents aren't all red carpet royalty, but each is a unique case study on how the limelight can impact raising kids.

By Cristen Conger

What really makes us who we are: nature or the nurturing influence of parents? Behavioral geneticists think our DNA makes all the difference, but psychologists disagree. Who's right?

By Cristen Conger

Far more diverse than the "Leave It to Beaver" bunch, the cast of "Modern Family" reflects a 21st-century shift in how people conceptualize the meaning of family. Check out these images to see how unconventional families come together to create real-world, contemporary households.

By Cristen Conger

Like niche cousins of life coaches, parenting coaches serve as support hotlines for parents to strategize common challenges such as toilet training and attachment issues. But do these mentors really make a difference?

By Cristen Conger

Kids' temper tantrums and their accompanying sobs, screams and whines can be stressful for parents -- and embarrassing when they occur in public. Do these outbursts point to poor parenting skills, or are they a natural part of growing up?

By Cristen Conger

Neurologist-turned-shrink Sigmund Freud formulated theories of childhood development that others have spun into practical parenting advice. What would the groundbreaking psychoanalyst have to say about today's child rearing methods?

By Cristen Conger

Research has shown correlations between single parenting and adolescents' lower socioeconomic status and lower educational attainment, among other things. But could conflict-riddled two-parent households also have negative effects on kids?

By Cristen Conger

Since the late 1700s, U.S. moms have been regarded as the gatekeepers of the nation's future, but the constructs, demographics and social values related to motherhood have changed a great deal. What's it like to be a mom today?

By Cristen Conger