Variation is the differences between individuals of the same species, caused by genetic and environmental factors. Surveys into variation give data that are continuous, which means to come in a range, ...

Molecular genetic studies of species are giving us clearer, more precise views of the natural world around us. These sorts of studies have the greatest public impacts when they reveal that a familiar ...

Genetic variability in reaction norms reflects differences in the ability of individuals, populations and ultimately species to respond to environmental change. By increasing our understanding of how ...