 Reference Base  Lisbon's unusual zoo guest, a 3-horn black rhino (Diceros... |
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Brouard, P., 1978. Lisbon's unusual zoo guest, a 3-horn black rhino (Diceros bicornis). International Zoo News 25 (2): 12-13, figs. 1-2
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| Location: |
Captive - Europe |
| Subject: |
Morphology - Horn |
| Species: |
Black Rhino |
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December 1977, an unusual black rhino was on view. Its head prides itself not only on the normal two horns, but on three horns, the latter having no common characteristic with the third horn which possibly appears in Asiatic species. The third horn is situated far from the two conventional ones, on the place where the horn of the famous unicorn appears. It is obvious that this third horn is not natural. It has been grafted, evidently recently, onto this adult rhino. A 10 cm diameter hole has been bored in the thick skin and the extra horn has been driven into the head of the patient. The diameter of the hole being a little larger than the diameter of the horn itself, some pins have been wedged to eliminate the gap, thus ensuring that the horn grows straight up.
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