Twins have long fascinated us as humans, so much so that twin stories are ingrained in the mythology of almost every culture.Beyond folklore, the study of twins has also become...

Okay students, pencils down! A week ago Friday we posted the second in a three-part series of educational courses for back-to-school season. The entries are now in. You can see...

Correction: Ouch! We mistakenly listed the wrong answer to the last question in the quiz. It has been corrected. Populations are more similar now than they were 500 years ago...

Theories abound about the effects of birth order on personality, success, and other life outcomes. Last week we quizzed our readers on traits that differed between 23andMe customers who were oldest children (firstborns) versus youngest children (lastborns). So what were the correct answers? Read on...

Ever felt like your studious oldest sibling was more responsible? Or that your rebellious younger sibling always got the most attention? Our latest quiz questions our thoughts about the effects birth order has on personality, accomplishment, and life choices.

Last week we quizzed our readers on traits that differed between 23andMe customers who use Macs versus those who use Windows. Congratulations to, the winner of the quiz! She got all three answers correct and will receive a $25 Amazon gift card. So what were the correct answers? Read on…

We may not be able to tell you if Mac users are more likely to be hipsters, but we did find some interesting correlations with 23andMe customers* who use Macs and with customers who use Windows. Guess right in our quiz and you could win a prize!

Is it nature or nature? One concept scientists use to describe this balance is "heritability". But there are some nuances to this concept that often cause it to be misinterpreted. Show us what you know about heritability in this week's quiz!

Last week we quizzed our readers on traits associated with BMI among 23andMe’s customers. Congratulations to Suellen, the winner of the quiz! So what were the correct answers? Read on...

Besides height and weight, can you guess what features are most strongly correlated with body mass index (BMI)? Over the next few months, we’ll be testing your intuition on some of the most interesting associations we’re seeing in the 23andMe database. Guess right, and you could win cool prizes, including gift cards and 23andMe schwag! Then come back the next week to learn the answers and see who won.