After a lovely stretch running right along the edge of Lake Baikal we moved away from birch and pine tree territory into lusher pastures.
在沿着贝加尔湖的一段美妙行程之后，我们离开了桦树和松树的地域，进入了令人迷醉的大草原。
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Dr Field’s team set about the task by analysing ancient records of birch pollen preserved in lake sediments from known mammoth breeding grounds like Siberia.
Dr Field's team set about the task by analysing ancient records of birch pollen preserved in lake sediments from known mammoth breeding grounds like Siberia.