The similarities may be uncanny, but identical twins aren't exact copies of one another ...

In your article on fingerprints, Stephen Meagher is quoted as saying: “individual fingerprints are effectively unique” (17 September, p 6). Can this be true? Wouldn’t identical twins also have ...

Identical, or monozygotic, twins develop from the same fertilized egg that splits into two. These twins are the same sex and share the same genes. Sometimes called paternal twins, identical twins ...