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CynthiaW's avatar

Today’s special animal is the black rhinoceros, Diceros bicornis, a critically endangered pachyderm. Pachyderms are an obsolete order of thick-skinned, nonruminant ungulates; the Order Pachydermata included elephants, hippos, rhinos, and tapirs. We now know that rhinos and tapirs (and horses) are in the Order Perissodactyla, while elephants are all alone in the Order Proboscidea. This will be on the test.

An adult black rhino is about 6 feet high at the shoulder and is 9 to 12 feet in length. They commonly weigh over 3,000 lbs. and sometimes weigh over 6,000 lbs.

https://www.youtube.com/watch?v=KhVlkc1yGwM

Black rhinos eat leafy plants, twigs, branches, shoots, thorny wood bushes, small trees, legumes, fruit, and grass. Their ideal habitat is shrubby and scrubby, with a few trees to provide shade, and they favor woody plants over grass. This makes them more difficult to keep in captivity than grazing animals. Nonetheless, they are successfully kept and bred in many zoos around the world.

https://www.youtube.com/watch?v=CzujuYbSHHo

Black rhinos have two horns. The rear (or higher on the head) horn is conical and can be 22 inches long. The front horn is curved and can be up to 55 inches long. The horns are made of keratin, like your fingernails. They grow throughout the animal’s life, and each one provides a “fingerprint” of the individual based on its diet and other environmental factors.

https://www.youtube.com/watch?v=APFhlJH1SUI

Black rhinos were nearly eradicated by hunters in the 19th and early 20th centuries. From a low of around 2,500 individuals, the population has increased to over 6,000. Poaching is still a threat; the main economic driver is the demand for horns for “traditional medicine.” One measure used to protect the rhinos is tranquilizing them and cutting off the horn with a chainsaw.

Black rhinos are very aggressive. They will charge anything that moves and some things that don’t, such as trees and termite mounds. Although adults are rarely killed by other wild animals, intra-species mortality is high, with 50% of males and 30% of females killed by their own kind.

https://www.youtube.com/watch?v=nWVL4xuuE6M

The belief that rhinos’ eyesight is unusually poor has been shown to be inaccurate. Their eyesight is okay, while their hearing and sense of smell are excellent. Another belief that is being challenged is the mutualistic symbiosis of oxpecker birds and cattle egrets with pachyderms. Recent studies suggest that the attention of oxpeckers is a net negative for rhinos, keeping wounds from healing and increasing blood loss.

https://www.youtube.com/watch?v=rtULCsX_H9o

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CynthiaW's avatar

I like your guo, although I don't want one for myself. We have a wok that gets used a few times a year, usually when Thor shows up with the urge to stir-fry.

Good article, very involving descriptions, I could really see the scene.

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