Didn't watch the entire movie. Story line is stagnant. Very little attention paid to the actual exploration. Focused more on killing and borderline abuse of the dogs. Turned it off when a dog was tethered off a cliff and whimpering. And one of the characters says to leave it....it's just a dog.
It may have been just a dog, but it didn't deserve the obvious scare tactics that led to the whimpering.