Cockroaches are horrible and if they have wings and start flying, I'm gone .
Spiders(atleast the ones in the UK) don't bother me and I just leave them to get on with what they are doing. They are harmless after all and serve a great purpose. Anything that traps and kills flies is a friend of mine.
Snakes don't bother me, but I can't say I would enjoy waking up one morning and seeing a King cobra sat there hissing at me . But in general I like them and I even used to have a small Garter Snake when I was a kid. I can't say I'd go full on @Tanksie and start picking venomous ones up in the wild, although I wouldn't mind viewing them from a distance. They are quite fascinating to be honest.
One of the best things about going night fishing is all the wildlife you see. Other than rats, which are like roaches, and seem to scare the shit out of me despite being harmless, I''ve seen bats(you see those everywhere though), owls, foxes and badgers(on one occasion in the past, as it's hard to see badgers) at night and in the early morning, deer, kingfishers, etc. When I woke up the last time I went night fishing, a kingfisher was sat on one of my rods, just a few meters away from me. They are very timid birds, so to see one so close is a privilege and not something that many people will experience. Also when I was walking around to the other side of the lake to bait up in May last year, a deer came running out of the woods and ran past me, just a meter or so away from me. It nearly gave me a heartattack and would have taken me out had it ran straight at me . It's one of the best things about going fishing to be honest, being out in the wildlife. You see plenty of insects which you wouldn't think existed in the UK as well.
As for birds, I'd say in terms of UK wildlife, we have a greater variety of birds than any other species of animal. There is actually a nature reserve around 10 mile from me and there are 100s of different species there, including Marsh Harriers, Ospreys, Bitterns and Purple Herons, which are all quite rare. As for other animals, it's not shy of otters either, which have also found their way there.
The jungle would be an amazing experience and you should try and build up the courage to go while you have the opportunity.
I remember @El_Loco telling me a story about how he visited the Amazon Rainforest. It would be interesting to hear more. Also @Bravado, have you ever visited there mate? Since you're from Brazil and like to travel, I'd be surprised if you didn't.