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The black rhinoceros can also be distinguished from the white rhinoceros by its size, smaller skull, and ears; and by the position of the head, which is held higher than the white rhinoceros, since the black rhinoceros is a browser and not a grazer. Black rhinoceros female, with a red-billed oxpecker and scratches on skin, in Nairobi National Park
The western black rhino emerged about seven to eight million years ago. It was a sub-species of the black rhino. For much of the 20th century, its population was the highest out of all of the rhino species, at almost 850,000 individuals. There was a 96% population decline in black rhinos, including the western black rhino, between 1970 and 1992.
The south-central black rhinoceros (Diceros bicornis minor), also known as the south-central hook-lipped rhinoceros or the lesser black rhino, is a subspecies of the black rhinoceros. In keeping with the rules of zoological nomenclature, the south-central black rhinoceros should be known as Diceros bicornis keitloa (Smith, 1836), a nomen novum. [3]
The reason why the rhino increases its densities and their birth rate decreases is because of the continuous threat of poaching and emigration. Sex ratio brings about reproduction issues because the male numbers begin to dominate, leaving too low of a number of females to allow positive, consistent birth and growth rates (Benson, 2, 792).
Rhino Man is a feature-length documentary about South African field rangers protecting rhinos from poaching by crime syndicates. It's a film by the Global Conservation Corps produced by Friendly Human and directed by John Jurko II , Matt Lindenberg, and Daniel Roberts.
The southern black rhinoceros, southern hook-lipped rhinoceros or Cape rhinoceros (Diceros bicornis bicornis) is an extinct subspecies of the black rhinoceros that was once abundant in South Africa from the Cape Province to Transvaal, southern Namibia, and possibly also Lesotho and southern Botswana.
The south-western black rhinoceros (Diceros bicornis occidentalis) is a subspecies of the black rhinoceros, living in southwestern Africa (northern Namibia and southern Angola, introduced to South Africa). It is currently listed as near threatened by the IUCN. The biggest threat towards the subspecies is illegal poaching. [1]
Due to the efforts of conservation groups like the International Black Rhino Foundation, the population has stabilized, illegal poaching has been reduced, and the population has even been growing. The population of South-central Black Rhinoceros was around 1,650 in 2001. Nine years later, there are about 4,000 black rhinos in the wild.