https://www.ncbi.nlm.nih.gov/Structure/pdb/1V75
1V75: Crystal structure of hemoglobin D from the Aldabra giant tortoise (Geochelone gigantea) at...
Hemoglobin A and D beta chainHemoglobin D alpha chainPROTOPORPHYRIN IX CONTAINING FE
https://www.usgs.gov/publications/status-and-distribution-angonoka-tortoise-geochelone-yniphora-western-madagascar
Status and distribution of the angonoka tortoise (Geochelone yniphora) of western Madagascar | U.S....
From 1993 to 1995, field surveys were conducted in western Madagascar to assess the current status of the angonoka tortoise (Geochelone yniphora) in the wild....
https://pam.wikipedia.org/wiki/Geochelone_nigra_abingdoni
Geochelone nigra abingdoni - Wikipedia
nigrawikipedia