The Javan rhinoceros is a mammal of the Rhinoceros genus in the Rhinoceros family, also known as the small unicorn rhinoceros. Strong and robust physique. The skin is mostly brown black, gray black, and has wart like protrusions. Except for obvious hair on the tips and tails of the ears, the rest of the body is almost hairless. The average weight is around 1500 kilograms. The body length is 2-3.5 meters, and the shoulder height is about 1.5 meters. The ears are oval in shape, with a thick and long head and a short and thick neck. The upper part of the nose has a low solid horn, which is usually not prominent in adult females. Its horn is smaller than that of the Indian rhinoceros, hence it is also known as the small unicorn rhinoceros. The lifespan is around 40 years. The Javan rhinoceros is the smallest of the five existing rhinoceros species, with less than 100 individuals, and is on the brink of extinction in the wild.