Reddit reviews American Indian Myths and Legends (The Pantheon Fairy Tale and Folklore Library)

That's because it's not a "fact" it's a "folktale", probably from this book. Like Paul Bunyon or Johnny Appleseed only native American style. If you have time look up the story of "teeth in the wrong place" from this same book.

The cultures that comprise native america are so wonderfully diverse and is definitely not a singular "native american tradition". If you are a reader this book features stories from many different tribes. It was my textbook for american indian literature class (I majored in american indian studies).

Some suggestions:

Oral History/Stories

• The Sons of the Wind: The Sacred Stories of the Lakota - Dooling
  
  
• American Indian Myths and Legends - Erdoes, Ortiz
  
  
• American Indian Trickster Tales - Erdoes, Ortiz
  
  Historical/Educational material
  
  
• Letters and Notes on the Manners, Customs, and Contitions of North American Indian; Vol. I & II - Catlin
  
  
• Major Problems in American Indian History - Hertado, Iverson
  
  
• We are Still Here: American Indians in the Twentieth Century - Iverson
  
  
• American Indian Politics and the American Political System - Wilkins, Stark
  
  Native Authors
  
  
• Custer Died For Your Sins - Vine Deloria Jr.
  
  
• Standing in the Light - Young Bear, Theisz
  
  
• The Way to Rainy Mountain - Momaday
  
  
• Prayers of Smoke
  
  
• Bury My Heart at Wounded Knee: An Indian History of the American West - Brown
  
  Non-Native Authors
  
  
• Neither Wolf nor Dog: On Forgotten Roads with an Indian Elder - Nerburn
  
  
• The Wolf at Twilight: An Indian Elder's Journey through a Land of Ghosts and Shadows - Nerburn
  
  
  Region Specific
  
  
• Lakota Society - Walker
  
  
• The Lakota and The Black Hills - Ostler
  
  
• Black Elk Speaks - Neihardt
  
  And just for fun, a Movie
  
  
• Dreamkeeper - Steve Barron
  
  Feel free to point out any mistakes, I'll add more should I think of them.
  
  These are just suggestions.

It isn't a work of philosophy, but Clendinnen's Aztecs: An Interpretation gives a very interesting and scholarly account of late Aztec life just before the Spanish conquest from a historical-sociological perspective. The text covers all of the basic social groups from warriors to priests to women. And it's a great read.

Although it is considered rather pulp, Carlos Castaneda's books are a pseudo-anthropological account of native american sorcery/philosophy, and at the least are very psychologically interesting - enough so to be referenced both by Deleuze in his Nietzsche book and in the first season of The Sopranos.

And of course there is the classic tome of NA myths and legends. I had a copy when I was a kid and would read it before bed.