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According to one estimate, there could be as many as thirty million species of animals living in the sea, most still undiscovered. 据一项估计,海洋里可能生活着多达3000万种动物,大多数尚未被发现。 The first hint of how ab
Dinosaur Death Leads to Rise of Fish 恐龙死亡导致鱼类增多 Tens of millions of years ago, an asteroid hit what is now the Yucatan Peninsula of Mexico. The event led to a global mass extinction that has been linked to the end of the dinosaurs
Climate change 气候变化 Good news at last? 终于来了好消息? The climate may not be as sensitive to carbon dioxide as previously believed 气候对二氧化碳的敏感性可能低于先前的预期 CLIMATE science is famously complicated,
Only about one bone in a billion, it is thought, ever becomes fossilized. 据认为,在10亿根骨头当中,只有大约l根能变成化石。 If that is so, it means that the complete fossil legacy of all the Americans alive todaythat's 270 mill
We are all the result of a single genetic trick handed down from generation to generation nearly four billion years, 我们都是同一遗传戏法的结果。那种戏法一代一代地传下来,经历了差不多40亿年, to such an extent that
In the 1830s, the British naturalist Edward Forbes surveyed ocean beds throughout the Atlantic and Mediterranean 19世纪30年代,英国博物学家爱德华福布斯勘察了大西佯和地中海各处的海床, and declared that there was no li