So I have this idea for this unique species of jumping spider.
Basically it is around a foot long/medium sized hat size and has pretty big fangs for its size. It jumps on to people's heads and uses these fangs to bite through the skull of humans(and maybe other similar creatures like gorillas) and injects a mind control venom into the head. Somehow, this allows for it to maneuver the host like the rat from Ratatouille.
Then it uses the host as a tool to gather and in some/many cases cultivate fruit for the spider and a home for its young(they are laid in fruits like pumpkins, also they reproduce asexually). They also use in to defend themselves from harm and from others things stealing its food.
Now at first, pretty much any fruit at least as big as an apple was game for it. But then I thought that it mainly going for avocados would be a better idea as it has both the fat and protein(I think they have a decent amount of it) that other fruits lack or are low in since an IRL mostly herbivorous jumping spider eats something similar.
My only real doubts about this is that avocados probably take a while to grow and that the host has its own needs.
These are not really a naturally occurring species, whether they are a GMO creature gone wrong or a freak sudden mutation brought on by some kind of bizarre incident, I have not decided.
How likely is this species method of survival going to work out given that they are somewhat similar to other jumping spiders barring their size, diet, and behavior?