Bornean Orangutan (Pongo pygmaeus)

Bornean orangutans thrive primarily in Southeast Asia's forest habitats. Found on the island of Borneo, they prefer living in swampy, hilly, and old-growth rainforests. Their environment varies significantly, from lowland swamps to dipterocarp forests.

Sumatran Orangutan (Pongo abelii)

Sumatran orangutans reside in lowland forests, swamps, and mangroves of Indonesia's Sumatran island. Heavy logging has isolated them in fragmented forests.

Tapanuli orangutan (Pongo tapanuliensis)

The Tapanuli orangutan holds residence in South Tapanuli on Sumatra, Indonesia's island. This group was recognized as a distinct species in 2017, thanks to a thorough phylogenetic study analyzing genetic samples and comparing the genomes of orangutans across Sumatra and Borneo2.

Sumatran Orangutan (Pongo abelii)

Sumatran orangutans reside in lowland forests, swamps, and mangroves of Indonesia's Sumatran island. Heavy logging has isolated them in fragmented forests.

Sumatran Orangutan (Pongo abelii)

Fun Fact: Did you know that orangutans can travel up to 100 feet in a single swing? These incredible acrobats use their long arms and strong hands to navigate the dense rainforest.

Hairy-Nosed Otter (Lutra sumatrana)

The Hairy-Nosed Otter is a semi-aquatic mammal living in peat swamp forests, coastal mangroves, and rice fields across Thailand, Cambodia, and Vietnam. It can grow up to 4.3 feet and weigh up to 18 pounds.

Moreover, its dark brown coat, slightly lighter on the underbelly, shines in its freshwater habitats. It has a unique fur-covered nose that distinguishes it from other otters.

Sumatran Rhinoceros (Dicerorhinus sumatrensis)

Our last type of rhino is the Sumatran rhinoceros, also known as the Hairy Rhinoceros. It was historically found in regions spanning from Assam, Burma, and Indochina to Malaysia, northern Sumatra, and northwestern Borneo. Today, it only resides in national parks in Sumatra and Malaysia.

It has fringed ears, two horns, reddish-brown skin cloaked in long hair, and distinct wrinkles around its eyes. The dense hair aids in layering mud on the rhino's skin, forming a natural cooling system in hot weather. 

The Sumatran rhino is also the smallest of the rhinoceros family, weighing between 1,300 to 2,200 pounds. These two-horned creatures have an adaptive dietary habit. They are generalist herbivores, feeding primarily on leaves and twigs from saplings and small trees.

Unfortunately, the Sumatran Rhinos are critically endangered2. Habitat loss due to encroachment, poaching, human disturbance, and habitat fragmentation has led to an 80% reduction in population over the last three generations. 

Today, less than 30 mature individuals are estimated to exist, with a projected probability of extinction at 90% within three generations without proactive interventions.

Sumatran Elephant (Elephas maximus sumatranus)

The Sumatran Elephant lives in the lush rainforests of Sumatra. They can reach up to 10.5 feet and 8,800 pounds. Their skin is lighter than the two previous subspecies and has the least depigmentation.

Sumatran Orangutan (Pongo abelii)

Sumatran orangutans reside in lowland forests, swamps, and mangroves of Indonesia's Sumatran island. Heavy logging has isolated them in fragmented forests.

Sumatran Orangutan (Pongo abelii)

Fun Fact: Did you know that orangutans can travel up to 100 feet in a single swing? These incredible acrobats use their long arms and strong hands to navigate the dense rainforest.