生活在切尔诺贝利禁区的狼群与其环境建立了一种迷人的关系。1986年核灾难发生近四十年后，该地区已成为一个意想不到的野生动物庇护所，研究表明那里的种群密度可能比周边地区高出数倍。根据2026年发表在《分子生态学》上的一项研究，切尔诺贝利狼表现出辐射压力的生物学信号，以及与免疫功能相关基因中可能发生的自然选择。
Wolves living in the Chernobyl Zone have developed a fascinating relationship with their environment. Nearly four decades after the 1986 nuclear disaster, the region has become an unexpected wildlife refuge, with research suggesting that the population there may reach densities several times higher than those in the surrounding areasAccording to a 2026 study published in Molecular Ecology, Chernobyl wolves show biological signals of radiation stress and possible natural selection in genes linked to immune function.
这些发现揭示了捕食者与其由放射性污染塑造的环境之间更为紧密的关系。尽管如此，科学家强调，仅凭基因差异并不意味着动物已对辐射产生抵抗力。相反，该研究引发了关于野生动物对长期环境压力反应的重大问题。切尔诺贝利如何成为野生动物的意外家园切尔诺贝利灾难发生于1986年4月26日，当时乌克兰北部核电站的一座反应堆在安全测试中发生爆炸。
The findings shed light on a closer relationship between predators and their environment shaped by radioactive contamination. Nevertheless, scientists emphasize that genetic differences alone do not suggest animals have become resistant to radiation. Instead, the research raises significant questions about wildlife's reaction to prolonged environmental stress. How Chernobyl became an unexpected home for wildlifeThe Chernobyl disaster took place on April 26, 1986, when one reactor at the nuclear plant in northern Ukraine exploded during a safety test.
爆炸导致放射性物质扩散至欧洲部分地区，并迫使受影响地区的居民撤离。随着时间的推移，人类的缺席开始影响那一带的生态系统。空置的村庄、森林、田野和牧场成为了狼、鹿、野猪等多种动物的家园。这一案例引起了众多科学家的兴趣，因为这些动物继续在受有害辐射污染的地区生存。
The explosion resulted in the spread of radioactive substances across the parts of Europe and forced people in affected areas to relocate. Over time, the absence of humans began to influence the ecosystem in that part of the world. Vacant villages, forests, fields, and pastures became home to many types of animals such as wolves, deer, and wild boars. This case has intrigued many scientists because these animals continue to survive in areas contaminated with harmful radiation.A 2015 study published in the Current Biology examined long-term wildlife census data and found that wolf abundance inside the exclusion zone was more than seven times higher than in four uncontaminated regional nature reserves.
2015年发表在《当代生物学》上的一项研究考察了长期野生动物普查数据，发现禁区内狼的数量是四个未受污染的区域性自然保护区的七倍多。此外，他们还发现其他大型哺乳动物也变得丰富起来。
In addition, they found that other species of large mammals had become abundant as well.
他们的研究表明，人类活动的缺失可能导致了动物种群数量的增加。基因研究揭示了与辐射相关的压力迹象最近的一项研究揭示了切尔诺贝利狼群的生物学效应。科学家们试图了解长期暴露于电离辐射如何影响狼群的免疫系统、基因调控以及跨代的遗传多样性。为了进行调查，该研究将切尔诺贝利隔离区的灰狼（Canis lupus）与白俄罗斯北部放射性污染较低地区的灰狼进行了比较。此外，还参考了美国黄石国家公园狼群的遗传数据。
Their research suggested that the absence of human activity may have contribute to increase in animal population. Genetic research reveals signs of radiation related stressThe more recent study has revealed about biological effects on Chernobyl wolves. The scientists were trying to understand how long-term exposure to ionizing radiation could affect the wolves' immune system, gene regulation, and genetic diversity across generations. To investigate, the study compared gray wolves (Canis lupus) from the Chernobyl exclusion zone with gray wolves from northern Belarus, where radioactive contamination is lower. Moreover, the genetic data of Yellowstone National Park wolves from the United States were considered.
科学家分析了血液转录组，它携带着关于血细胞基因活动和遗传变异的信息。他们观察到了白细胞生成过程的改变。这些细胞在保护机体免受感染和受损皮肤细胞等各种伤害方面发挥着至关重要的作用。此外，他们还发现了代谢和免疫通路的改变，主要是那些负责DNA损伤修复的通路，因为电离辐射有能力破坏细胞中的DNA。
Scientists analyzed blood transcriptomes, which carry information about gene activity in blood cells and genetic variation. They were able to see alterations in the creation of leukocytes which is commonly known as white blood cells. These cells play a vital role in protecting the body from various harms such as infections and damaged skin cells. Furthermore, they also found alterations in metabolic and immune pathways, mainly those that are responsible for DNA damage, as ionizing radiation has the ability to cause damage to the DNA in cells.
这些观察结果表明，生活在隔离区的狼经历了与慢性辐射暴露相关的可测量生物学变化。然而，研究人员并未确定辐射单独导致了观察到的变化，因为种群历史和生态因素也可能影响基因。狼群可能如何在基因层面适应关键发现是发现了可能是自然选择迹象的遗传差异。具体而言，科学家在切尔诺贝利狼群中发现了几个加速遗传分化的区域，这些区域包含涉及免疫系统和癌症相关过程的基因。两个基因，EMC6和APBB1IP，引起了特别关注。
These observations suggest that wolves living in the exclusion zone experience measurable biological changes associated with chronic radiation exposure. However, researchers did not establish that radiation alone caused the observed changes, because population history and ecological factors could also affect the genes. How wolves may be adapting at the genetic levelThe key findings were the discovery of the genetic differences that may be a sign of natural selection. Specifically, the scientists found several regions of accelerated genetic differentiation in Chernobyl wolves where genes involved in the immune system and cancer-related processes were located. Two genes, EMC6 and APBB1IP, drew special attention.
这些片段在哺乳动物的免疫过程中发挥重要作用，并因参与检测异常细胞而为人所知。科学家指出，此类基因变化可能是对辐射环境适应的迹象。因此，当有助于个体生存或繁殖的遗传特征在连续几代中在种群中变得更加普遍时，自然选择就会发生。在受辐射暴露的环境中，携带有助于应对辐射细胞效应的基因变异的动物可能具有生存优势。
These segments play an important role in immune processes in mammals and are known for their involvement in detecting abnormal cells. The scientists pointed out that such changes in genes could be a sign of adaptation to the radiation environment. Thus, natural selection occurs when genetic traits that give individuals an advantage in survival or reproduction become more common in a population over successive generations. In a radiation-exposed environment, animals carrying genetic variations that help them cope with the cellular effects of radiation might have a survival advantage.
然而，该研究并未证明切尔诺贝利狼已进化出对辐射的完全抵抗力。相反，研究人员确定的基因模式提供了自然选择的可能证据，而非狼已适应辐射的确凿证明。
However, the study does not prove that Chernobyl wolves have evolved complete resistance to radiation. Instead, the genetic patterns identified by the researchers provide possible evidence of natural selection, rather than confirmation that the wolves have adapted to radiation.