This photo taken on August 17, 2017 shows a gorilla at the zoological park in Amneville, eastern France. / AFP PHOTO / JEAN-CHRISTOPHE VERHAEGEN
Ya Kwanza, a silverback gorilla male, stands in its enclosure "Gorilla's Camp" at the Amneville zoo, eastern France, on April 04, 2012. Ya Kwanza...
Gorilla male sits in the enclosure "Gorilla's Camp" at the Amneville zoo, eastern France, on April 04, 2012. Ya Kwanza, a silverback gorilla male,...
Ya Kwanza, a silverback gorilla male, sits in its enclosure "Gorilla's Camp" at the Amneville zoo, eastern France, on April 04, 2012. Ya Kwanza...
Two male gorillas sit in the enclosure "Gorilla's Camp" at the Amneville zoo, eastern France, on April 04, 2012. Ya Kwanza, a silverback gorilla...
Two male gorillas are seen in the enclosure "Gorilla's Camp" at the Amneville zoo, eastern France, on April 04, 2012. Ya Kwanza, a silverback gorilla...
Ya Kwanza, a silverback gorilla male, stands in its enclosure "Gorilla's Camp" at the Amneville zoo, eastern France, on April 04, 2012. Ya Kwanza...
Young silverback gorilla is pictured at the zoo of the French eastern city of Amneville, on June 5, 2012. AFP PHOTO / JEAN-CHRISTOPHE VERHAEGEN
Silverback gorilla is pictured at the zoo of the French eastern city of Amneville, on June 5, 2012. AFP PHOTO / JEAN-CHRISTOPHE VERHAEGEN
Silverback gorilla is pictured at the zoo of the French eastern city of Amneville, on June 5, 2012. AFP PHOTO / JEAN-CHRISTOPHE VERHAEGEN
Silverback gorilla is pictured at the zoo of the French eastern city of Amneville, on June 5, 2012. AFP PHOTO / JEAN-CHRISTOPHE VERHAEGEN
Young silverback gorilla is pictured at the zoo of the French eastern city of Amneville, on June 5, 2012. AFP PHOTO / JEAN-CHRISTOPHE VERHAEGEN
Silverback gorilla is pictured at the zoo of the French eastern city of Amneville, on June 5, 2012. AFP PHOTO / JEAN-CHRISTOPHE VERHAEGEN
Silverback gorilla is pictured at the zoo of the French eastern city of Amneville, on June 5, 2012. AFP PHOTO / JEAN-CHRISTOPHE VERHAEGEN
Silverback gorilla is pictured at the zoo of the French eastern city of Amneville, on June 5, 2012. AFP PHOTO / JEAN-CHRISTOPHE VERHAEGEN
Gorilla male holds carrots in the enclosure "Gorilla's Camp" at the Amneville zoo, eastern France, on April 04, 2012. Ya Kwanza, a silverback gorilla...
Gorilla male holds carrots in the enclosure "Gorilla's Camp" at the Amneville zoo, eastern France, on April 04, 2012. Ya Kwanza, a silverback gorilla...
Gorilla male sits in the enclosure "Gorilla's Camp" at the Amneville zoo, eastern France, on April 04, 2012. Ya Kwanza, a silverback gorilla male,...
Gorilla male sits in the enclosure "Gorilla's Camp" at the Amneville zoo, eastern France, on April 04, 2012. Ya Kwanza, a silverback gorilla male,...
Gorillas are seen in the enclosure "Gorilla's Camp" at the Amneville zoo, eastern France, on April 04, 2012. Ya Kwanza, a silverback gorilla male,...
Gorilla male sits in the enclosure "Gorilla's Camp" at the Amneville zoo, eastern France, on April 04, 2012. Ya Kwanza, a silverback gorilla male,...
Two male gorillas are seen in the enclosure "Gorilla's Camp" at the Amneville zoo, eastern France, on April 04, 2012. Ya Kwanza, a silverback gorilla...
Two male gorillas are seen in the enclosure "Gorilla's Camp" at the Amneville zoo, eastern France, on April 04, 2012. Ya Kwanza, a silverback gorilla...
Ya Kwanza, a silverback gorilla male, walks in its enclosure "Gorilla's Camp" at the Amneville zoo, eastern France, on April 04, 2012. Ya Kwanza...
Ya Kwanza, a silverback gorilla male, walks in its enclosure "Gorilla's Camp" at the Amneville zoo, eastern France, on April 04, 2012. Ya Kwanza...
Ya Kwanza, a silverback gorilla male, stands in its enclosure "Gorilla's Camp" at the Amneville zoo, eastern France, on April 04, 2012. Ya Kwanza...
Ya Kwanza, a silverback gorilla male, stands in its enclosure "Gorilla's Camp" at the Amneville zoo, eastern France, on April 04, 2012. Ya Kwanza...
Ya Kwaza, a silverback gorilla male, stands in its enclosure at the Amneville zoo, eastern France, on February 21, 2012. Ya Kwaza arrived with four...
Monza, 4 year-old, a gorilla male, stands in its enclosure at the Amneville zoo, eastern France, on February 21, 2012. Ya Kwaza arrived with four...
Monza, 4 year-old, a gorilla male, stands in its enclosure at the Amneville zoo, eastern France, on February 21, 2012. Ya Kwaza arrived with four...
Lengaï, 6 year-old, a gorilla male, stands in its enclosure at the Amneville zoo, eastern France, on February 21, 2012. Ya Kwaza arrived with four...
Ya Kwaza, a silverback gorilla male, is offered food in its enclosure at the Amneville zoo, eastern France, on February 21, 2012. Ya Kwaza arrived...
Ya Kwaza, a silverback gorilla male, stands in its enclosure at the Amneville zoo, eastern France, on February 21, 2012. Ya Kwaza arrived with four...
Ya Kwaza, a silverback gorilla male, stands in its enclosure at the Amneville zoo, eastern France, on February 21, 2012. Ya Kwaza arrived with four...