The fruit of an aquatic plant, they look like a black bull's head with impressive horns.

一种水生植物的果实，看起来像一只长着骇人犄角的黑公牛的头部。

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"Horns have been appearing in London at these natural history sales," says Martin, "and before, the price used to be quite low.And now, they're paying up to a $100,000 for a pair of black rhino horns.

"犀牛角过去一直作为自然历史销售品出现在伦敦"，martin说，"这之前，它的价格一直很低，而现在，黑犀牛角的价格达到10万美元一对。"

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Black and white POTS that made my eyes light up: a lovely calf is a leisurely walk in the grasslands, crooked horns, big eyes, his face still hung sweet smile.

那个黑白相间的花盆使我的眼睛一亮：一只可爱的小牛正悠闲地漫步在草原上，弯弯的犄角，大大的眼睛，脸上还挂着甜美的微笑。

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Despite having survived as a species for at least 50 million years, black and white rhino have been hunted to near-extinction because of their horns.

BBC: The rhino wars of central Kenya