21. Also, no gracile capuchins have beards. 22. This enzyme from the proteobacterium " Marichromatium gracile " is a chimeric protein. 23. Robber flies have stout, spiny legs and they have three simple eyes ( gracile build. 24. It had relatively gracile limb bones. 25. The radius is gracile , with a midshaft width to length ratio of 0.12. 26. For example, comparing similar species, rats have robust body types while mice are gracile . 27. This erect, gracile plant is less than 10 cm high and very simple in structure. 28. Two morphs, a robust and a gracile one, were present in the fossil material. 29. Gracile capuchins have rounder skulls, whereas robust capuchins have jaws better adapted for opening hard nuts.30. Male and females of the same species may display sexual dimorphism and have robust and gracile morphologies.