As Chagos Archipelago is oas vo de am bestn gschitztn tropischn Inselsysteme. De Insln hamd an Lemsraum fia an Haufa Oatn, voa oim fia Seevegl. De Insln hamd 10 Important Bird Areas (IBA) und as Barton Point Reserve z Diego Garcia, wos de wejdweid gresste Population vo Rotfußtölpel (Sula sula) hod.