@CNN: You’ve probably heard of identical and fraternal twins. But a new report says there’s a third kind — sesquizygous or “semi-identical” twins, so rare that only two cases have ever been identified https://t.co/5GEed6eBp8

March 1, 2019 / The Arbiter / CNN

@CNN: You’ve probably heard of identical and fraternal twins. But a new report says there’s a third kind — sesquizygous or “semi-identical” twins, so rare that only two cases have ever been identified https://t.co/5GEed6eBp8

You've probably heard of identical and fraternal twins. But a new report says there's a third kind — sesquizygous or "semi-identical" twins, so rare that only two cases have ever been identified https://t.co/5GEed6eBp8

— CNN (@CNN) March 1, 2019

x