Tampilkan postingan dengan label Black Rhinoceros. Tampilkan semua postingan
Tampilkan postingan dengan label Black Rhinoceros. Tampilkan semua postingan

Sabtu, 01 Agustus 2009

Rhino Pictures








For the differences between Black and White rhino CLICK "HERE"

For facts on White rhino CLICK "HERE"

For facts on Black rhino CLICK "HERE"

Selasa, 10 Februari 2009

Black Rhino Facts

Alternative Name: Hook-lipped Rhinoceros

Latin Name: Diceros bicornis

Status: Endangered

Lifespan: 40 years

Weight:
Both male and female adults average from 800 to 850 kg, with large adults reaching up to 1000 kg.

Habitat:
Black Rhinoceros are found in dry arid areas as well as savannah and woodland areas with sufficient shrubs and trees to hide in, in the heat of the day.

Food:
Black rhino are browsers, feeding off a wide variety of shrubs and trees. Toxic plants such as the Tamboti Spirostachys africana with its high latex content are also eaten, having no harmful effects on the animal.

The black rhino has a very prehensile upper lip that is used to pull off leaves, shoots and thin branches while feeding.

Reproduction:
Breeding takes place at any time of the year. The female can conceive her first calf at 7 to 8 years of age. A bull will ascertain if a cow is in oestrus by taste-testing the females’ urine otherwise known as “flehmen”.
After a successful copulation, the female has a gestation period of 15 months and gives birth to a calf weighing in at about 40 kg.

The calf suckles off the mother for 12 – 13 months and is fully weaned at 14 months. When the cow is ready to give birth to her next calf, she then chases the older calf away to be on its own or temporarily join up with other adults or youngsters in the area. The calf is usually chased away at 2 to 4 years of age.

Notes:
Black Rhinos do not defend territories but do have home ranges in variable size that they scent-mark in. The bull scent-marks by either spraying urine onto vegetation or by defecating in certain spots called middens. Middens, which vary in number, are large collections of dung left by one bull or a number of different adults over a period of time. The bull after dropping his dung scrapes it into the ground with his hind legs and then spreads the dung further by dragging his feet as he walks away from the midden. Dung stuck under the bulls’ feet helps to further spread his scent as his walks through the area.
The purpose of a midden is to possibly convey information to other adults in the area by the different smells left in the midden.

The black rhinoceros has very weak eyesight but to compensate for that it has a very keen sense of smell and good hearing.

Of the two species of rhino found in Africa, the black rhino is the far more aggressive species. There are however fewer incidents of black rhino injuring or killing people, owing to its much lower population.

The white rhino having a higher population results in more frequent encounters with humans and although not considered as dangerous, accidents have been recorded.

Selasa, 14 Oktober 2008

Difference between Black and White Rhino



Black Rhino (Hooked-lip Rhino)

•Smaller than the white rhino. A large bull weighs around 1000 kg.
•They have a rather small hooked shaped mouth for feeding on trees and shrubs.
•The black rhinos' natural head posture is face upward, so there is no need for it to lift its' head when feeding off trees.
•Black rhino are often found in thick vegetation which is possibly the reason why the female will often run in front of her calf to clear a pathway.
•The black rhino is short tempered and extremely aggressive compared to the white rhino.
•They are very solitary and seldom join up with other individuals.

White Rhino (Broad-mouthed Rhino)

•Larger than black rhino. Large bulls reaching weights of 2500 kg.
•They have a very broad flat mouth which aids in feeding off large quantities of grass.
•A white rhinos' natural head posture faces downward so its' mouth is always close to the ground while grazing.
•They have a very distinct hump above the shoulders as well as a very prominent fold of skin at the lower parts of the shoulders.
•Being a very social animals it is not uncommon to see 10 or 15 white rhinos moving together and sometime more.
•White rhino are normally found in very open areas such as plains.
•The calf normally runs in front of its mother, with the mother using her horn to direct the calf by tapping it on the rear.

There is no colour difference between the two rhinos. The Dutch people named the white rhino the "Weid mond rhino", meaning “Wide-mouth rhino”. The English thought they were saying "white", so it was all just a misinterpretation of the name.

Even though the white rhino is less aggressive, there are still more incidents of them attacking people as they have a higher population and thus regular encounters with people.