Tadpole shrimp have outlived dinosaurs , trilobites and mammoths .

鲎虫比恐龙、三叶虫、猛犸象更长寿。

But haven 't mammoths pretty much gone extinct ?

不过长毛象不是快绝种了吗？

Possums were possums and mammoths were mammoths .

负鼠是负鼠、长毛象是长毛象。

A cheaper sort comes from extinct woolly mammoths , which are periodically excavated from siberia 's tundra .

较便宜的那种是来自定期从西伯利亚冻原中出土的已灭绝猛犸象象牙。

By improving their hunting techniques , early humans seem to have played a major role in finishing off the woolly mammoths and nine other mammal species that weighed over a tonne .

利用改进了的狩猎技术，早期人类似乎扮演了终结者的角色，使长毛猛犸和其他九种超过一吨的哺乳动物彻底从地球上消失。