Dicerorhinus Sumatrensis Skull Replica measures 16.5 in. Dicerorhinus Sumatrensis Skull Replica is museum quality polyurethane resin. Made in USA. 2-part skull (separate cranium and jaw).

The Dicerorhinus Sumatrensis or Sumatran rhinoceros is the smallest rhinoceros, it stands 3.67–4.76 ft. high at the shoulder, with a head-and-body length of 7.7 to 10.4 ft. and a tail of 14 to 28 in.

The Sumatran rhinoceros or Dicerorhinus Sumatrensis are now critically endangered, with only five substantial populations in the wild: four in Sumatra and one in Borneo.

They live in both lowland and highland secondary rainforest, swamps, and cloud forests. It inhabits hilly areas close to water, particularly steep upper valleys with copious undergrowth.

D. s. sumatrensis, known as the Western Sumatran Rhinoceros, which has only 60 rhinos remaining, mostly in the national parks of Bukit Barisan Selatan and Kerinci Seblat, Gunung Leuser in Sumatra, and Way Kambas National Park in small numbers.

They have recently gone extinct in Peninsular Malaysia. The main threats against this subspecies are habitat loss and poaching.

A slight genetic difference is noted between the Western Sumatran and Bornean rhinos. The rhinos in Peninsular Malaysia were once known as D. s. niger, but were later recognized to be a synonym of D. s. sumatrensis.

Three Dicerorhinus sumatrensis bulls and five cows currently live in captivity at the Sumatran Rhino Sanctuary at Way Kambas, the youngest bull having been bred and born there in 2012.

Another calf, a female, was born at the sanctuary in May 2016. The sanctuary’s two bulls were born at the Cincinnati Zoo and Botanical Garden. A third calf female was born in March 2022.

Captive Dicerorhinus sumatrensis specimens, deprived of adequate wallowing, have quickly developed broken and inflamed skins, suppurations, eye problems, inflamed nails, and hair loss, and have eventually died.

One 20-month study of wallowing behavior found they will visit no more than three wallows at any given time. After two to 12 weeks using a particular wallow, the rhino will abandon it.

Typically, the rhino will wallow around midday for two to three hours at a time before venturing out for food.

In Zoos the Dicerorhinus sumatrensis or Sumatran rhino has been observed wallowing less than 45 minutes a day, the study of wild animals found 80–300 minutes (an average of 166 minutes) per day spent in wallows.