Strangers who look alike have similar habits and DNA.

Spanish scientists have found that strangers with similar facial features have similar habits, behaviors and genotypes, while they differ in DNA methylation and microbiome. For research, scientists took pictures of Canadian photographer Francois Brunel - since 1999 he has been doing a project about twins. The scientists contacted pairs of doppelgangers, took DNA samples from them and asked them to fill out two questionnaires: biometric and lifestyle. According to the researchers, only one pair of twins out of 32 could have common ancestors. Some outwardly similar people even lived in opposite parts of the world. The results of the study can be useful for genetic diagnosis and forensic medicine - it will be possible to quickly and accurately recreate the face of a criminal from his DNA.