Sergio Hanquet / Arrow crab (Sternorhynchus lanceolatus). Tenerife, Canary Islands.

Sergio Hanquet / Green sea turtle (Chelonia mydas), two viewed from above. Tenerife, Canary Islands.

Sergio Hanquet / Loggerhead turtle (Caretta caretta) young animal tangled in fishing net. Tenerife, Canary Islands. 2019.

Juan Carlos Munoz / Aerial view of Salinas de Janubio, La Hoya, Lanzarote Island, Canary Islands. December 2018.

Edwin Giesbers / Barbary ground squirrel (Atlantoxerus getulus) looking over rock, Fuerteventura, Canary Islands. Introduced from North Africa.

Edwin Giesbers / Barbary ground squirrels (Atlantoxerus getulus) fighting, Fuerteventura, Canary Islands. Introduced from North Africa.

Jordi Chias / Juvenile Green turtle (Chelonia mydas) Armenime cove, South Tenerife, Canary Island, Atlantic Ocean

Jordi Chias / Loggerhead turtle (Caretta caretta) Los Gigantes, South Tenerife, Canary Islands, Atlantic Ocean.

Jordi Chias / Underwater cameraman filming Loggerhead turtle (Caretta caretta) Los Gigantes, South Tenerife, Canary Islands, Atlantic Ocean.

Jordi Chias / Loggerhead turtle (Caretta caretta) Los Gigantes, South Tenerife, Canary Islands, Atlantic

Jordi Chias / Loggerhead turtle (Caretta caretta) with diver, Los Gigantes, South Tenerife, Canary Islands, Atlantic

Jordi Chias / Loggerhead turtle (Caretta caretta) close up, Los Gigantes, South Tenerife, Canary Islands, Atlantic