Jen Guyton / Ayla Kaltenecker releases an African fish eagle (Haliaeetus vocifer) that was captured in a leg-hold trap to be studied by raptor biologists. The researchers took measurements and a blood sample befor...

Jean E. Roche / Conservationists constructing holes to hold water, useful for Flamingos nesting. Salin de Giraud, Camargue, France, March 2017

Tony Wu / Aerial view of the small island of Kashiwa-jima, with pens in the foreground for aquaculture. The large pens hold tuna. Kochi Prefecture, Japan

Tony Phelps / Female Chacma baboon (Papio ursinus) grooming a male, with infant playing nearby, male grabs hold of infant, DeHoop Nature Reserve, Western Cape, South Africa, September.

Inaki Relanzon / Animals Asia volunteer standing in front of a display about bear bile farming and a disused, rusty cage full of illegal metal jackets used to hold a catheter in place so that bile can constantly leak...

Bertie Gregory / School of Glassfish (Parapriacanthus guentheri) in the cargo hold of the SS Ulysses, Gubal Island, northern Red Sea.

Bertie Gregory / Common lionfish (Pterois miles) stretching it's mouth in the cargo hold of the SS Ulysses, Gubal Island, northern Red Sea.

Bertie Gregory / Second world war motorbike in the cargo hold of the SS Thistlegorm, northern Red Sea, February 2016

Bertie Gregory / Diver investigates a second world war motorbike with his torch in the cargo hold of the SS Thistlegorm, northern Red Sea, February.

Pascal Kobeh / The hold with three Fiat 1100 of the Umbria wreck, Sudan, Red Sea

Pascal Kobeh / A diver in the hold of the wreck of the Hoki Maru, a passenger cargo used as a auxiliary transport vessel, which houses several trucks, Chuuk or Truk Lagoon, Carolines Islands, Pacific Ocean