Craig,
Tell them about the croc incidents every week in Australia

. Ok, it's wide spread that Brazil have a big variety of wildlife. On my walks I don't found just waterfalls and rivers, but I could find some really BIG spiders as you can notice by the picture (I could not find anything around to get a scale idea but this thing was bigger than 2 hands and i'd to use zoom to get that close)!!!
I found some armadillos, little monkeys, a type of monkey called Bugio that is around 1,10m taller, but he doesn't come close of humans most of the time. Some very rude ants (they were very big and red). Wildcat once at night, when we were coming home

. We just saw the eyes shining when we pointed the flashlight on their direction. But the strangest that I could come across was a dead hawk. I don't know what killed it, but he was big, but unfortunelly dead. I could keep talkin' about others like owls and some really beauty birds, but I'm not that one who knows name of every animal.