Now it's still not a given in that situation that the high IQ individual would be better adapted to the environment as physical traits may matter more, but it is probable that the high IQ individual has a better model of the predators, spiders, snakes and environment in general.
The speed with which an individual develops accuracy in their model of something (ceteris paribus) does seem to be captured by an IQ-like score, according to the research.
The thing people that actually causes problems is that people mentally equate 'higher intelligence' with 'better' or 'more valuable' which goes against our desire for humans to all be equal(ly valuable). That is what generally leads people to come up with other forms of 'intelligence' (emotional intelligence, street smarts, etc.), even though that just redefines intelligence to the point where the original meaning is lost and a new word needs to be introduced. Much better imho is to keep the original word intact and use terms like 'emotional competence', which also capture the experience part rather than just the genetic part.