Photo credit: A herd of woolly mammoths, as depicted by Charles R. Knight. (public domain)

Explore the articles Ray wrote on migration theories featured in Pleistocene Coalition News:

• Another thought on Clovis caches and migration, PCN Jan/Feb 2023, page 18

• More observations on the controversial subject of the peopling of the Americas, PCN Sept/Oct 2020, pages 18-19

• Some observations on the controversial subject of the peopling of the Americas, PCN July/August 2018, pages 17-18