Kelp Highway Hypothesis explains coastal migration to Americas. The Kelp Highway hypothesis proposes settlers used boats to hop along the kelp-covered west coast of the Americas They followed fish and other sea resources that use kelp as a major part of their ecosystem This explains how the western continent could be settled before the ice-free corridor opened in Beringia
Scientists now think some of the first Americans arrived by boat along the kelp-covered Pacific coast, following fish and sea resources. Research confirms Pacific coastal regions had kelp forests during the Pleistocene. This explains sites like Bluefish Caves and Monte Verde being occupied before the ice-free corridor opened.
Key facts:
- The Kelp Highway hypothesis proposes settlers used boats to hop along the kelp-covered west coast of the Americas
- They followed fish and other sea resources that use kelp as a major part of their ecosystem
- This explains how the western continent could be settled before the ice-free corridor opened in Beringia
- Sites like Bluefish Caves (Yukon) and Monte Verde (Chile) are south of expected Beringian entry points
- Research has shown Pacific coastal regions had kelp forests during the Pleistocene, providing stable resources for hunter-gatherer communities
Key Facts
- The Kelp Highway hypothesis proposes settlers used boats to hop along the kelp-covered west coast of the Americas
- They followed fish and other sea resources that use kelp as a major part of their ecosystem
- This explains how the western continent could be settled before the ice-free corridor opened in Beringia
- Oldest sites like Bluefish Caves (north), White Sands (New Mexico), and Monte Verde (Chile) are further south than expected
- A January 2026 paper showed Peru and Chile coasts had kelp forests for eons, providing stable resources for hunter-gatherer communities
Source: Who Were the First Americans & Where Did They Come From? by DeDunking