The Giant Ibis is the world's largest ibis and is found in the wetlands, grasslands, and forests of Cambodia, with a small population in neighboring Laos. It is recognized by its long, curved bill, dark plumage, and powerful legs. Giant Ibises feed on insects, crustaceans, amphibians, and other small animals found in shallow wetlands. Habitat loss and hunting have made this rare bird critically endangered.

The Kouprey is a wild cattle species once found in the forests and grasslands of Cambodia and neighboring regions. Recognized by its tall build, long legs, and distinctive frayed horns, it was adapted to open woodlands and seasonal forests. Very little is known about its behavior, as the species has not been reliably seen for decades. Although it is widely believed to be extinct, occasional unconfirmed sightings continue to fuel hope that a few individuals may still survive.

The Pileated Gibbon is a small ape found in the forests of Cambodia, Thailand, and Laos. It is recognized by its long arms, agile movements, and the distinctive black cap on males. Pileated Gibbons spend nearly their entire lives in the forest canopy, feeding on fruits, leaves, and flowers. Their loud, melodious calls help pairs defend their territories and strengthen family bonds.

The Indochinese Tiger is a rare tiger subspecies found in the forests and mountains of mainland Southeast Asia. Recognized by its deep orange coat and narrow black stripes, it is a powerful solitary predator that hunts deer, wild pigs, and other large mammals. Habitat loss, poaching, and declining prey populations have caused severe population declines, making the Indochinese Tiger endangered.

The Red-shanked Douc Langur is a striking primate found in the forests of Vietnam, Laos, and Cambodia. Often called one of the world's most beautiful monkeys, it is recognized by its bright red legs, gray body, black face, and white tail. Feeding mainly on leaves, fruits, and flowers, it spends most of its life in the forest canopy. Habitat loss and hunting have made this remarkable species endangered.

The Siamese Crocodile is a critically endangered crocodile found in the rivers, wetlands, and freshwater marshes of Southeast Asia. It is recognized by its broad snout and olive-green coloration. Feeding on fish, amphibians, reptiles, and small mammals, it plays an important role in maintaining healthy freshwater ecosystems. Habitat loss, hunting, and hybridization with other crocodile species have caused dramatic population declines across its range.