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A rhinoceros (/ r aɪ ˈ n ɒ s ər ə s / ry-NOSS-ə-rəss; from Ancient Greek ῥινόκερως (rhinókerōs) 'nose-horned'; from ῥίς (rhis) 'nose' and κέρας (kéras) 'horn'; [1] pl.: rhinoceros or rhinoceroses), commonly abbreviated to rhino, is a member of any of the five extant species (or numerous extinct species) of odd-toed ungulates (perissodactyls) in the family ...
The researchers measured the horns of 80 rhinos, photographed between 1886 and 2018 with their horns in full view. A baby black rhino with its mother. Black rhinos are classed as critically ...
Javan rhinos do not appear to often use their horn for fighting but instead uses it to scrape mud away in wallows, to pull down plants for eating, and to open paths through thick vegetation. Similar to the other browsing species of rhino ( black and Sumatran ), Javan rhinos have a long, pointed, upper lip which helps in grabbing food.
After two to 12 weeks using a particular wallow, the rhino will abandon it. Typically, the rhino will wallow around midday for two to three hours at a time before foraging for food. Although in zoos the Sumatran rhino has been observed wallowing less than 45 minutes a day, the study of wild animals found 80–300 minutes per day spent in wallows.
Rhinoceros horns, unlike those of other horned mammals, consist only of keratin. These horns rest on the nasal ridge of the animal's skull. Antlers are unique to cervids and found mostly on males: the only cervid females with antlers are caribou and reindeer, whose antlers are normally smaller than males'.
Rhinos also protect their skin in an unusual way: by befriending oxpeckers. This 8-inch-long bird has a wide bill, stiff tail, and sharp claws. They eat ticks and other insects off of the rhino's ...
The Indian rhinoceros (Rhinoceros unicornis), also known as the greater one-horned rhinoceros, great Indian rhinoceros or Indian rhino, is a species of rhinoceros found in the Indian subcontinent. It is the second largest living rhinoceros species, with adult males weighing 2.07–2.2 t (2.04–2.17 long tons; 2.28–2.43 short tons) and adult ...
The samples were collected from two rhinos that were less than 2 years old, two that were between 3 and 7 years old, two adult rhinos that had given birth at the zoo, and two that had been unable to.