Eurasian beaver (Castor fiber), captive in breeding programme, United Kingdom, Europe

Eurasian beaver (Castor fiber), captive in breeding programme, United Kingdom, Europe

Captive Galapagos giant tortoise (Geochelone elephantopus) at the Charles Darwin Research Station, Galapagos, UNESCO World Heritage Site, Ecuador, South America

Eurasian beavers (Castor fiber), captive in breeding programme, United Kingdom, Europe

Common dormouse (Muscardinus avellanarius), torpid, in captive breeding programme, United Kingdom, Europe

Ostrich (Struthio camelus), captive in ostrich breeding farm, Cumbria, England, United Kingdom, Europe

Male Torgamba, hairy rhino (Sumatran rhino), near extinct as only 500 left, in captive breeding programme, Port Lympne Zoo, Kent, England, United Kingdom, Europe

Male Tormanga, hairy rhino (Sumatran rhino), near extinct as only 500 left, in captive breeding programme, Port Lympne Zoo, Kent, England, United Kingdom, Europe

Captive adult Chimpanzees Pan troglodytes verus Standing in La Vallee Des Singes, Poitou - Charentes France. More info: Status, endangered. This rare sub species of chimp came from a breeding centre in Holland. They were originally rescued from a laboratory when the Netherlands at last made it illegal to experiment on primates.

Captive adult Chimpanzees Pan troglodytes verus in La Vallee Des Singes, Poitou - Charentes France. More info: Status, endangered. This rare sub species of chimp came from a breeding centre in Holland. They were originally rescued from a laboratory when the Netherlands at last made it illegal to experiment on primates.

Young Captive Galapagos giant tortoise (Geochelone elephantopus) being fed at the tortuguero breeding station, Puerto Villamil on Isabela Island in the Galapagos Island Archipelago, Ecuador

Eurasian lynx (Lynx lynx), kitten with his mother playing in a forest, captive, Germany, Europe

Heck Cattle (Bos primigenius taurus), an attempt to breed back the extinct Aurochs from domestic cattle. Winter in the National Park Bavarian forest (Bayerischer Wald)(enclosure). Europe, Central Europe, Germany, Bavaria, February

Heck Cattle (Bos primigenius taurus), an attempt to breed back the extinct Aurochs from domestic cattle. Winter in the National Park Bavarian forest (Bayerischer Wald)(enclosure). Europe, Central Europe, Germany, Bavaria, February