The relationship between sun exposure and melanoma mortality and risk of lymphoma was explored in two recent articles and a related editorial ( 1 – 3 ) . Unfortunately, the discussion in the related editorial ( 1 ) was not supported by the data presented. The study by Berwick et al. ( 2 ) demonstrated, within the limits of a retrospective study, that patients with melanoma have a better prognos...

Many animals, and birds in particular, are thought to use directional information from the sun in the form of a time-compensated sun compass, with predictably deviated orientation under clock shift being regarded as the litmus test of this. We suggest that this paradigm obscures a number of other ways in which solar-derived information could be important in animal orientation. We distinguish be...