• 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>Fire Ecology >Speculations about the Effects of Fire and Lava Flows on Human Evolution
【24h】

Speculations about the Effects of Fire and Lava Flows on Human Evolution

机译：关于火和熔岩流对人类进化影响的推测

获取原文
           
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

Recent research argues that an association with fire, stretching back millions of years, played a central role in human evolution resulting in many modern human adaptations. Others argue that hominin evolution was driven by the roughness of topographic features that resulted from tectonic activity in the African Rift valley. I combine these hypotheses to propose that, for millions of years, active lava flows in the African Rift provided consistent but isolated sources of fire, providing very specific adaptive pressures and opportunities to small isolated groups of hominins. This allowed these groups of early hominins to develop many fire specific adaptations such as bipedalism, smaller teeth and mouths, shorter intestines, larger brains, and perhaps a host of social adaptations. By about 1.8 million years ago, Homo erectus emerged as a fire adapted species and mastered the technology necessary to make fire itself. This technology allowed them to move into the rest of the world, taking a new kind of fire with them that would change ecosystems everywhere they went. This hypothesis is supported by recent geologic work that describes a large lava flow occurring in the region of the Olduvai Gorge during the 200 000 year time period we believe Homo erectus emerged in the area.
机译：最近的研究认为，与火的关联可以追溯到数百万年前，在人类进化中起着核心作用，导致了许多现代人类的适应。其他人则认为，人参素的进化是由非洲大裂谷的构造活动引起的地形特征的粗糙所驱动的。我结合这些假设提出，在数百万年的时间里，非洲大裂谷中活跃的熔岩流提供了始终如一但孤立的火源，为孤立的小群人类提供了非常具体的适应压力和机会。这使得这些早期人类素族能够发展出许多针对火的适应性，例如两足动物，更小的牙齿和嘴巴，更短的肠道，更大的大脑，以及可能的许多社会适应性。到大约180万年前，直立人已经成为适应火灾的物种，并且掌握了自行生火所需的技术。这项技术使他们能够进入世界其他地方，与他们一起开火，这将改变他们所到之处的生态系统。这一假说得到了最近的地质工作的支持，该工作描述了在20万年前的Olduvai峡谷地区发生的大熔岩流，我们认为该地区出现了直立人。

著录项

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱：kefu@zhangqiaokeyan.com

京公网安备：11010802029741号 ICP备案号：京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有

  • 客服微信

  • 服务号