Koyama, T Respiratory Pores on Ostrich Struthio camelus (Aves: Struthionidae) Eggshells. [electronic resource] - Advances in experimental medicine and biology - 51-55 p. digital Publication Type: Comparative Study; Journal Article ISSN: 0065-2598 Standard No.: 10.1007/978-3-319-38810-6_7 doi Subjects--Topical Terms: AnimalsAnimals, DomesticAnimals, WildCell RespirationEgg Shell--anatomy & histologyEmbryo, Nonmammalian--metabolismHardnessOxygen--metabolismPorosityStruthioniformes--embryologySurface Properties