In Pictures: Zoo poo fuels new tropical house

Visitors to Marwell Zoo's new Tropical House can expect to see a sloth, pygmy marmosets, tortoises, and a giant aquarium with 2,500 fish.

Operators of the Hampshire attraction said 700 tonnes of animal waste - dung, soiled bedding and leftover hay - will help power the exhibit.

A wood chip boiler will be supplemented by one capable of burning straw-based animal manure later this year, helping the zoo achieve its goal of becoming carbon neutral by 2020.

Tiger barb fish swim in the 70,000 litre aquarium in the new Tropical House at Marwell Zoo in Hampshire (Andrew Matthews/PA)
Tiger barb fish swim in the 70,000 litre aquarium (Andrew Matthews/PA)
A Marwell Zoo employee makes their way around the new Tropical House (Andrew Matthews/PA)
Rainwater from the roof will be harvested to provide water for the aquarium and plants (Andrew Matthews/PA)
Rica the two-toed Sloth in the new Tropical House at Marwell Zoo in Hampshire (Andrew Matthews/PA)
Rica the two-toed sloth (Andrew Matthews/PA)
A Pygmy Marmoset in the Tropical House at Marwell Zoo in Hampshire (Andrew Matthews/PA)
A pygmy marmoset clings to a tree (Andrew Matthews/PA)
Ross Brown cleans the 70,000 litre aquarium in the Tropical House at Marwell Zoo in Hampshire (Andrew Matthews/PA)
Zoo worker Ross Brown cleans the aquarium in the Tropical House (Andrew Matthews/PA)
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