The black rhinoceros or hook-lipped rhinoceros (Diceros bicornis), is a species of rhinoceros, native to the eastern and central areas of Africa including Kenya, Tanzania, Cameroon, South Africa, Namibia, Zimbabwe, and Angola.
Both black and white rhinoceroses are actually gray. They are different not in color but in lip shape. The black rhino has a pointed upper lip, while its white relative has a squared lip. The difference in lip shape is related to the animals' diets. Black rhinos are browsers that get most of their sustenance from eating trees and bushes. They use their lips to pluck leaves and fruit from the branches. White rhinos graze on grasses, walking with their enormous heads and squared lips lowered to the ground.
Except for females and their offspring, black rhinos are solitary. Females reproduce only every two and a half to five years. Their single calf does not live on its own until it is about three years old.
Black rhinos feed at night and during the gloaming hours of dawn and dusk.The black rhinoceros is a herbivorous browser that eats leafy plants, branches, shoots, thorny wood bushes, and fruit.Their diet can reduce the amount of woody plants, which may benefit grazers (who eat grass), but not competing browsers. It has been known to eat up to 220 species of plants. It can live up to 5 days without water during drought. Black rhinos live in primarily grasslands, savannas, and tropical bushland habitats. Under the hot African sun, they take cover by lying in the shade. Rhinos are also wallowers. They often find a suitable water hole and roll in its mud, coating their skin with a natural bug repellent and sun block.
Rhinos have sharp hearing and a keen sense of smell. They may find one another by following the trail of scent each enormous animal leaves behind it on the landscape.
Black rhinos boast two horns, the foremost more prominent than the other. Rhino horns grow as much as three inches (eight centimeters) a year, and have been known to grow up to five feet (one and a half meters) long. Females use their horns to protect their young, while males use them to battle attackers.
The prominent horn for which rhinos are so well known has also been their downfall. Many animals have been killed for the hard, hairlike growth, which is revered for medicinal uses in China, Taiwan, Hong Kong, and Singapore. The horn is also valued in North Africa and the Middle East as an ornamental dagger handle.
The gestation period is 15 to 16 months. The single calf weighs about 35–50 kg at birth, and can follow its mother around after just three days. Weaning occurs at around 2 years of age for the offspring. The mother and calf stay together for 2–3 years until the next calf is born; female calves may stay longer, forming small groups. The young are occasionally taken by hyenas and lions. Sexual maturity is reached from 5–7 years old for females, and 7–8 years for males. The life expectancy in natural conditions (without poaching pressure) is from 35–50 years.
The black rhino once roamed most of sub-Saharan Africa, but today is on the verge of extinction due to poaching fueled by commercial demand.
Fast Facts
- Type:
- Mammal Sources:www.nationalgeographic.com
- Size:
- Height at shoulder, 4.5 to 6 feet (1.4 to 1.8 m)
- Weight:
- 1,760 to 3,080 lbs (800 to 1400 kg)
- Protection status:
- Endangered
- Size relative to a 6-ft (2-m) man:
Diet:Herbivore www.wikipedia.com
