Cheryl-Samantha Owen / Aldabra giant tortoise (Geochelone gigantea) on beach at dusk, Aldabra Atoll, Seychelles, Indian Ocean

Huw Cordey / Marine litter - mostly shoes (flip flops) and plastic bottles washed up on shore with Aldabra giant tortoise (Aldabrachelys gigantea). Cinq Cases, Aldabra Island, Indian Ocean

Huw Cordey / Marine litter - mostly shoes flip flops) and plastic bottles washed up on shore with Aldabra giant tortoise (Aldabrachelys gigantea). Cinq Cases, Aldabra Island, Indian Ocean

Huw Cordey / Pathway made of plastic shoes ( flip flops) washed up on the beach and collected within 20 metres of the middle of the picture. In the background is a Aldabra giant tortoise (Aldabrachelys gigantea)...

Franco Banfi / Giant tortoises (Geochelone gigantea), Aldabra Atoll, Natural World Heritage Site, Seychelles, Indian Ocean.

Franco Banfi / Giant tortoise (Geochelone gigantea), Aldabra Atoll, Natural World Heritage Site, Seychelles, Indian Ocean.

Martin Gabriel / Aldabra Giant Tortoise (Dipsochelys dussumieri), mating couple, La Digue Island, Republic of Seychelles. Captive.

Juergen & Christine Sohns / Aldabra Giant Tortoise (Aldabrachelys gigantea), Heidelberg, Germany

Juergen & Christine Sohns / Aldabra Giant Tortoise (Aldabrachelys gigantea), Heidelberg, Germany

Juergen & Christine Sohns / Aldabra Giant Tortoise (Aldabrachelys gigantea), Heidelberg, Germany

Juergen & Christine Sohns / Aldabra Giant Tortoise (Aldabrachelys gigantea) grazing, Heidelberg, Germany

Willem Kolvoort / Aldabra Giant Tortoise (Aldabrachelys gigantea) carapace / shell detail from above, Grand Terre, Natural World Heritage Site, Aldabra