Characteristics in an individual organism are caused by both genetic and environmental variation. For example, the weight of a dog is caused partly by its genes - inherited - and partly by what it ...

For example, sibling competition ... For eight of the 56 variables, an additional factor (either common environmental variation or non-additive genetic variation) was found to be significant.

Epigenetics may be how Darwin’s finches rapidly change their beak size and shape in response to sudden environmental changes, such as drought or human disturbance, in the absence of gene mutations ...

Characteristics in an individual organism are caused by both genetic and environmental variation. For example, the weight of a dog is caused partly by its genes - inherited - and partly by what it ...