And don't say humans, too obvious, too cynical.
I'd delete mosquitos.
The only negative effect I can think of would be fish won't have mosquito larvae to eat and their diet would have to shift.
And don't say humans, too obvious, too cynical.
I'd delete mosquitos.
The only negative effect I can think of would be fish won't have mosquito larvae to eat and their diet would have to shift.
Bed bugs.
Positive outcome would be no more having to burn contaminted possessions (or wash them in very hot water many times).
Yeah I think any human-specialized parasite is an easy choice. Head lice? Fuck em.