| 31. | The Javan rhino usually avoids humans, but will attack when it feels threatened.
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| 32. | The Javan rhinoceros never fared well in captivity.
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| 33. | Javan carried out the first demonstration of optical heterodyne beats with lasers in 1961.
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| 34. | The ancestors of early Indian and Javan rhino diverged 2 4 million years ago.
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| 35. | Now only Java contains the last Javan rhinos.
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| 36. | The Indian Javan rhinoceros was probably also an inhabitant of Kaziranga before becoming extinct.
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| 37. | The Javans sent 300 black slaves as tribute to the Ming dynasty in 1381.
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| 38. | If the Eve theory is correct, the Australian and Javan skulls should be unrelated.
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| 39. | Even the most optimistic estimate suggests fewer than 100 Javan rhinos remain in the wild.
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| 40. | Using this method Javan developed the first absolutely accurate measurement of the speed of light.
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