Archaeologists and other scholars have come to expect the unexpected from Blombos Cave.

考古学家们和其他学者已经开始期待布隆伯斯洞穴的意外。

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The reason is the discovery, in 2004, of some peculiar seashells of that age in Blombos, a seaside cave in South Africa.

原因就是在2004年，在南非海边的一个洞穴，布隆伯斯洞中发现了一些罕见的海贝。

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Researchers from the University of Colorado at Boulder examined stone tools dating from the Middle stone Age, some 75, 000 years ago, from Blombos Cave in what is now South Africa.

美国博尔德科罗拉多大学的研究人员仔细检查了这些来自南非布龙·保斯山洞的石器，它们可追溯到中石器时代，有些甚至可追溯到75,000年前。

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The discovery of 75, 000-year-old Nassarius shell beads at Blombos Cave in South Africa challenged this idea.

BBC: NEWS | Science/Nature | Study reveals 'oldest jewellery'

But there are, according to Mr Henshilwood, many more caves to explore and excavate near Blombos, so more art may turn up.

ECONOMIST: A cave in South Africa may rewrite human history

The Blombos cave and the Diepkloof rock shelter in South Africa have turned up ostrich shells and pieces of ochre with ornate markings that date back 60, 000 years ago.

FORBES: Human Ingenuity: A 100,000-Year-Old Story