What animal in Brazil is the most dangerous?

Answer 1

As in any other place on earth, is the human being, which is one of the only who kill just because he can.

The answer above is a good answer but as a animal it would have to be the Brazilian Wandering Spider. In my research for my future trip to Brazil I caught my eye on this deadly spider. Most people refer to it as the Banana Spider because of its tendency of hiding in bunches of bananas and being shipped to certain countries such as the United States. It is highly aggressive and very territorial. Mostly found at night it is a hunter and prefers to wander the forest and highly populated areas in the Amazon and South Eastern Brazil instead of making a web or ambushing its prey. Symptoms of its venom includes immediate pain, cold sweats, heart irregularity, and in men it effects are the equal of swallowing a Viagra. They look like Wolf Spiders except they are brown and have Scarlet colored hair covering their abnormally large fangs.