Edwin Giesbers / Barbary macaque (Macaca sylvanus) profile, portrait, Gibraltar Nature Reserve, Gibraltar, June.

Edwin Giesbers / Barbary macaque (Macaca sylvanus) babies hand holding onto adults fur. Gibraltar Nature Reserve, Gibraltar

Edwin Giesbers / Barbary macaque (Macaca sylvanus) baring teeth as a sign of submission, Gibraltar Nature Reserve, Gibraltar,

Edwin Giesbers / Barbary macaque (Macaca sylvanus) youngster climbing, Gibraltar Nature Reserve, Gibraltar,

Edwin Giesbers / Barbary macaque (Macaca sylvanus) two sitting close together, Gibraltar Nature Reserve, Gibraltar, June.

Edwin Giesbers / Barbary macaque (Macaca sylvanus) portrait, Gibraltar Nature Reserve, Gibraltar, June.

Edwin Giesbers / Barbary macaque (Macaca sylvanus) baby sitting with mother, Gibraltar Nature Reserve, Gibraltar, June.

Edwin Giesbers / Barbary macaque (Macaca sylvanus) baby sitting with mother, Gibraltar Nature Reserve, Gibraltar, June.

Edwin Giesbers / Barbary macaque (Macaca sylvanus) portrait, Gibraltar Nature Reserve, Gibraltar, June.

Wild Wonders of Europe / Lundgren / Gibraltar nudibranch (Tambja ceutae) Pico, Azores, Portugal, July 2009

Angelo Gandolfi / Birdwatchers observing White Storks (Ciconia ciconia) in flight over the Strait of Gibraltar. Mirador El Estrecho, Andalusia, Spain, 2007.

Mark Carwardine / Common dolphins bow riding {Delphinus delphis} Gibraltar

Jose B. Ruiz / Barbary apes {Macaca sylvanus) with Straits of Gibraltar in background, Gibraltar, Spain

Jose B. Ruiz / Barbary apes playing on motorcycle {Macaca sylvanus} Gibraltar, Spain

Roland Seitre / Barbary Macaque (Macaca sylvanus) mother and young on cement with city in background, Gibraltar, United Kingdom

Edwin Giesbers / Barbary macaque (Maccaca sylvanus) with baby, scares off another juvenile, Gibraltar, UK, July.

Edwin Giesbers / Barbary macaque (Maccaca sylvanus) with baby, Gibraltar, UK, July.

Edwin Giesbers / Close-up of a Barbary macaque (Maccaca sylvanus) baby suckling, Gibraltar, UK, July.

Jiri Lochman / Macleay's Swallowtail Butterfly (Graphium macleayanum), Gibraltar Range National Park, Gondwana Rainforest UNESCO World Hertiage Site, New South Wales, Australia.

Jiri Lochman / Swamp Wallaby (Wallabia bicolor), Gibraltar Range National Park, Gondwana Rainforest UNESCO World Hertiage Site, New South Wales, Australia.

Jiri Lochman / The Needles, Gibraltar Range National Park, Gondwana Rainforest UNESCO Natural World Heritage Site, New South Wales, Australia.

Sylvain Cordier / Striped dolphin (Stenella coeruleoalba) breaching, Strait of Gibraltar, Spain

Sylvain Cordier / Striped dolphin (Stenella coeruleoalba) Strait of Gibraltar, Spain

Sylvain Cordier / Striped dolphin (Stenella coeruleoalba) Strait of Gibraltar, Spain

Sylvain Cordier / Striped Dolphin (Stenella coeruleoalba) in the strait of Gibraltar, Spain

Sylvain Cordier / Tropical two-wing flyingfish (Exocoetus volitans) Strait of Gibraltar, Spain

Sylvain Cordier / Striped dolphin (Stenella coeruleoalba) breaching, Strait of Gibraltar, Spain

Edwin Giesbers / Barbary macaque (Macaca sylvanus) portrait, Gibraltar Nature Reserve, Gibraltar. June.

Edwin Giesbers / Barbary macaque (Macaca sylvanus) portrait of two sitting together, Gibraltar Nature Reserve, Gibraltar, June.

Edwin Giesbers / Barbary macaque (Macaca sylvanus) portrait of two sitting together, Gibraltar Nature Reserve, Gibraltar, June.

Edwin Giesbers / Barbary macaque (Macaca sylvanus) close up portrait, Gibraltar Nature Reserve, Gibraltar

Edwin Giesbers / Barbary macaque (Macaca sylvanus), Gibraltar Nature Reserve, Gibraltar, June.

Edwin Giesbers / Barbary macaque (Macaca sylvanus), female with suckling baby, photographerd by female tourist. Gibraltar Nature Reserve, Gibraltar, Tourist, June.

Edwin Giesbers / Barbary macaque (Macaca sylvanus) portrait, Gibraltar Nature Reserve, Gibraltar, June.

Edwin Giesbers / Barbary macaque (Macaca sylvanus) portrait, Gibraltar Nature Reserve, Gibraltar, June.

Edwin Giesbers / Barbary macaque (Macaca sylvanus) female resting on rock, Gibraltar Nature Reserve, Gibraltar, June.

Edwin Giesbers / Barbary macaque (Macaca sylvanus) two sitting silhouetted on rocks, Gibraltar Nature Reserve, Gibraltar,

Edwin Giesbers / Barbary macaque (Macaca sylvanus) feeding on leaves, Gibraltar Nature Reserve, Gibraltar, June.

Edwin Giesbers / Barbary macaque (Macaca sylvanus) reaching out to play with strap of woman's top. Gibraltar Nature Reserve, Gibraltar,

Edwin Giesbers / Barbary macaque (Macaca sylvanus) walking silhouetted, Gibraltar Nature Reserve, Gibraltar,

Edwin Giesbers / Barbary macaque (Macaca sylvanus) sitting, silhouetted against blue sky. Gibraltar Nature Reserve, Gibraltar, June.

Edwin Giesbers / Barbary macaques (Macaca sylvanus) two sitting close together next to memorial sign for 'Michael' the longest living macaque in Gibraltar. Gibraltar Nature Reserve, Gibraltar, June.

Edwin Giesbers / Barbary macaque (Macaca sylvanus) portrait, Gibraltar Nature Reserve, Gibraltar, June.

Edwin Giesbers / Barbary macaque (Macaca sylvanus) two sitting together, Gibraltar Nature Reserve, Gibraltar, June.

Edwin Giesbers / Barbary macaque (Macaca sylvanus) portrait, Gibraltar Nature Reserve, Gibraltar, June.

Edwin Giesbers / Barbary macaque (Macaca sylvanus) sitting with harbour of Gibraltar City in the background, Gibraltar Nature Reserve, Gibraltar, June.

Edwin Giesbers / Tourists watching male Barbary macaque (Macaca sylvanus), Gibraltar Nature Reserve, Gibraltar, June 2014.

Edwin Giesbers / Tourists watching Barbary macaque (Macaca sylvanus) climbing post, Gibraltar Nature Reserve, Gibraltar, June 2014.