The earliest Americans are very different from nowadays Indians or later archaeological material. We are proposing that the Americas were populated by waves of humans.

Eskimos get close because they are one of the few American Indians to have a long skull.

The fact that productive kelp forests are found adjacent to some of the earliest coastal archaeological sites in the Americas supports the idea that such forests may have facilitated human coastal migrations around the Pacific Rim near the end of the last glacial period. In essence, they may have acted as a sort of kelp highway.

I bet that if [molecular biologists] come to use the genes responsible for cranial morphology, our results will certainly agree. When the earliest Native Americans are taken into account, it becomes clear that the two most different and opposite architectural plans in terms of human cranial morphology existing today on the planet were represented in the New World.

How are the Indians on cats?"
"I never saw one. Plenty of dogs, though."
"They eat the dogs, don't they?"
"That's the Shoshones," I said. "A dog or coyote is sacred to a Comanche. You would be cursed."
"But they do eat human beings occasionally?"
"That's the Tonkawas," I said.
"Never the Comanches."
"A Comanche who ate a man would be killed by the tribe immediately, because supposedly it becomes an addiction."
"Interesting," he said. He was scratching his chin. "And this Sun Dance they all talk about?"
"That's the Kiowas," I said. "We never did that.

... in an even wilder part of the river's jungle of cane and gum and pin oak, there is an Indian mound. Aboriginal, it rises profoundly and darkly enigmatic, the only elevation of any kind in the wild, flat jungle of river bottom. Even to some of us - children though we were, yet we were descended to literate, town-bred people - it possessed inferences of secret and violent blood, of savage and sudden destruction, as though the yells and hatchets we associated with Indians through the hidden and seceret dime novels which we passed among ourselves were but trivial and momentary manifestations of what dark power still dwelled or lurked there, sinister, a little sardonic, like a dark and nameless beast lightly and lazily slumbering with bloody jaws...