For more than a century, scientists have debated whether intelligence is mostly a product of nature or nurture. Identical twins—those born with the same genetic blueprint—have long been the perfect ...

When we think of identical twins, we often imagine mirror images — same face, same smile and perhaps even the same talents. But what surprises many is that these genetic carbon copies can have ...

Study helps explain why identical animals can still look and act differently. (CREDIT: Shutterstock) Since then, researchers have asked how many metastable epialleles — or MEs — exist in mice. Could ...

Every August for the past 43 years, Twinsburg, Ohio, has hosted the biggest gathering of twins in the world. Two decades ago, organizers added an attraction to the lineup of parade, talent show and ...

An international team of researchers led by King's College London has identified genetic factors that may make some individuals more or less sensitive to the environments they experience. The ...