The seven ways you are totally unique

摘要

Even twins can be identified through the tiny marks on the surface of the skin（Credit：Getty Images）.Scientists are finding many surprising ways of identifying you from the other seven billion people in the world.生活中你有没有遇见过双胞胎？有的双胞胎相像地只有父母和他们本人才能分清楚,但科学家告诉我们他们可以从7个方面确定每一个人都是独一无二的。