A recent ATR study found that up to 30% of twins were incorrect or unsure about their zygosity i.e. whether they are identical or non-identical.

Why does it matter and how can you find out for sure...

In this recent Channel 7 news segment, Dr Andrew Rochford discusses how twins can provide us with a better understanding of who we are - and how we got that way. He argues that twin research is not just for twins, everyone can benefit.