Photographs showed the facial differences between twins, one of whom allegedly smoked and tanned for 16 years while the other did not.

with the additional images showing side-profile views of each twin. The caption accompanying the image in the study read: Fig. 6. Twins (natural age 61) with significant difference in sun exposure.

Instead, the research linked increased sun exposure to an older appearance of the in-question twins. Additionally, in the original study, the collage included four photographs rather than two, with ...