What does the fourth totem pole mean?

Hint 1 of 10:

Ask the bigfoots, blah blah blah....

Hint 2 of 10:

The fourth totem pole shows two Gemini-esque heads.

Hint 3 of 10:

Compare and contrast the two heads.  Write an essay if you want.

Hint 4 of 10:

What does one head have that the other head doesn't?

Hint 5 of 10:

That's right, hair.  Now, what could make the two heads alike?