>>2374671>bugsIt depends on how bad the situation is (sometimes called “bug pressure”). Maybe you can get away with just a bug shirt, which is a long sleeve shirt with a tight weave that mosquitoes can’t bite through. Maybe you’ll need a full head net to keep the bugs from flying into your eyes and up your nose. Generally though, you’ll be good by treating your clothes with permethrin (Google it) and having a spray that does into your skin (DEET works the best).
>animalsDepends on what your doing. We can talk about bears, which can be dangerous, sure. But you’re much, much more likely to encounter something like raccoons or mice or squirrels or chipmunks or any other matter of small mammals who frequent popular campsites and absolutely will chew through a thin piece of synthetic fabric to snack on whatever you brought.