Great news! We're exploring a wildly new way to book your Zoo Passes. Would you like to take it for a spin? Orangutans have long, sparse orange or reddish hair unequally distributed over their bodies. They have large jaws and flattened noses in concave faces. Orangutans are the largest arboreal mammals and are very well adapted to life in the trees, with arms much longer than their legs.
They have grasping hands and feet with long curved fingers and toes. They have distinctive fingerprints and no visible external tails.
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You can typically tell male and female orangutans apart by looking at them. Males and females have flabby throat sacs, which become very large in adult males. Adult males have deep chests and much longer body hair than females do.
Males also typically develop large cheek pads, which demonstrate genetic fitness and amplify their long calls. Orangutans can brachiate β swing hand over hand β but they normally move cautiously through large trees by climbing and walking. This allows them to distribute their weight among the branches. Orangutans' hands make them graceful and swift while swinging, but it makes walking on the ground very slow and awkward.
Orangutans sometimes travel on the ground when going long distances because appropriate sized branches may not always be available. When on the ground, they use all four limbs, supporting themselves on the sides of clenched fists, or occasionally walk on upright on two legs.
