Chuchuna, What Is Their Relationship to Bigfoot/Humans?

[Henry Stevens]

Writers Myra Shackley and/or Jean Marie Kaufman brought the Chuchuna to the attention of the West in their books.  They live in far eastern Siberia.  They are described as about seven feet tall, wear uncured reindeer skins, hunt with the bow and arrow, are usually hostile to humans.  What sets them apart besides their height is the shape of their head which is said to have overhanging brow ridges and peaked in the back like a hunter's cap.  

 

Besides these two sources, Russian researcher Paul Stonehill has done some more modern digging on the subject and published a video.

 

CHUCHUNA: MYSTERIOUS HUMANOIDS OF YAKUTIA - YouTube

 

Question:  Are these humans?  Are these bigfoot?  Or are they surviving Denisovans or something else.  Denisovan genes concerning fat metabolism have been found in the Eskimos so Denisovans were probably present in the Arctic.