2012 $1 Animals of The Zoo Orang-Utan Coloured Uncirculated CoinAustralias first zoo is currently home to six Orang utans. Orang utans are the largest tree dwelling mammals in the world and share 97% of our DNA making them one of our closest relatives. Like the other great apes, Orang utans are highly intelligent, they use tools such as sticks to scratch themselves and to obtain food. Orang utans are largely solitary, and usually spend most of their time foraging in the highest canopies of the rainforest. They