Scientists say they have reconstructed around half of the genome of the woolly mammoth, a species that became extinct at the end of the last Ice Age some 11,000 years ago.

科学家们说他们已经对长毛象的半数基因组重新进行组合，发现一个种类在冰河世纪末期也就是一万一千年以前开始灭绝。