Variation is the differences between individuals of the same species, caused by genetic and environmental factors. Surveys into variation give data that are continuous, which means to come in a range, ...

Osaka, Japan – All living beings, big or small, are formed through the hard work of many different cells. To keep the body ready for any challenge, cells need to be dynamic. Often, this means the same ...

Depending on the type of intersex variation someone has, it could alter their chromosome makeup, genital appearance, hormonal balance, and more. Share on Pinterest Maskot/Getty Images We’re born with ...