Aptenodytes fosteri

body mass

• Bergtold 1917: 1440 oz (tek ölçüm)

egg mass

• Bergtold 1917: 16 oz (tek ölçüm)

prenatal development duration

• Bergtold 1917: 8 weeks (maks.)
• Bergtold 1917: 7 weeks (tek ölçüm)
• Bergtold 1917: 7 weeks (min)