Science. 1967 Oct 6;158(3797):113-4. doi: 10.1126/science.158.3797.113.
Seeds of the arctic tundra lupine (Lupinus arcticus) at least 10,000 years old were found in lemming burrows deeply buried in permanently frozen silt of Pleistocene age in unglaciated central Yukon. They readily germinated in the laboratory and have since grown into normal, healthy plants.
在育空地区中部无冰区的更新世时期永久冻结的淤泥中,在深度掩埋的旅鼠洞穴中发现了至少 10000 年历史的北极羽扇豆( Lupinus arcticus )种子。它们在实验室中很容易发芽,并且已经长成了正常、健康的植物。