Asian Elephant  
Asian Elephants are smaller than African Elephants and have smoother, darker skin and smaller ears. They also have a single, finger-like projection on their trunks, whereas the African Elephant has two.

Nepalese Red Panda  
Red Pandas are more closely related to Giant Pandas than racoons, despite their similarities to the latter. Red Pandas are mostly nocturnal and solitary but they form pairs during the breeding season.

Oriental Small-clawed Otter  
The Oriental Small-clawed Otter is the smallest of the otters. Its short, sleek coat is dark brown. This species of otter can be seen 'playing' with sticks and pebbles.

Silvery Gibbon  
Silvery Gibbons have a fluffy appearance because of their very dense and long silvery-grey fur. They have very long forelimbs, long fingers and shorter thumbs which make them excellent brachiators.

Sulawesi Crested Macaque  
Macaques have a long muzzle with high, bony cheek ridges and a short, stumpy tail. They are jet black in colour with a crest of hair down the middle of their heads which gives them their name.

Sumatran Orang-utan  
Orang-utans have a coarse, shaggy reddish coat. Males look very different to females. An adult male is larger and has a throat pouch and flanges (cheek pads) on either side of its face. Perth Zoo has successfully bred 25 orang-utans since 1970.

Sumatran Tiger  
The Sumatran Tiger is the smallest of the tiger sub-species. This smaller size allows it to move through the forest quickly. There are now estimated to be only 400–500 Sumatran Tigers left in the wild.

Sun Bear  
Sun Bears have very short, smooth fur that varies from black to grey. The name Sun Bear comes from the yellow rising sun shaped patch on their chest. Habitat destruction and poaching are major threats to the Sun Bear.

White-cheeked Gibbon  
Male and female White-cheeked Gibbons have different coloured fur. The male’s body is covered with black fur, with white cheeks and a black crest on its head. The female is a golden colour with a black face and no crest.