Robustness (morphology)

In biology, robustness is used to describe a species with a morphology based on strength and a heavy build. The alternative morphology is the gracile body type.

For example, comparing similar species, rats have robust body types while mice are gracile. Male and females of the same species may display sexual dimorphism and have robust and gracile morphologies. Archaic Homo sapiens were robust while anatomically modern humans are gracile.