My kids have ruined this show and a lot of movies by posing a perfectly reasonable question that cannot be adequately answered: Before the ships and crews were there, what was the monster (or dinosaur, or predatory alien, etc.) eating? In this case, were there sufficient Inuit? Because the ones we encounter other than the woman don't seem afraid to be alone out in the open and make no steps to add any level of protection.
Note that I haven't read the book. Our daughter, who has, tells me I don't know what I think I know but will not say more.
Maryn, mystified
In the book, it's more clear the monster has mythical qualities. It's not a simple biological creature.