well, Oz is home to like 7 of the world's most poisonous snakes, tons of different types of jellyfish, 6 of the deadliest spiders on earth, and of course... the duck-billed platypus.

so I gotta guess that a lot of the spiders avoiding the flooding are probably from species that can make a human sick or dead.

I have your answers... From the first pic shown I can see at least five different species of spider. All spiders are venemous, it's how they kill prey. Most aren't lethal to Humans. As for the webs, most of the spiders I'm seeing in the pic look like ground spiders, they normally hunt prey and only use webs as anchors. The webs you see in the pics are just normal traveling webs left by spiders roaming. They just happen to be concentrated in areas because of the flooding. These webs are just an accident of survival, too many spiders in small spaces. I doubt anything could get trapped in these webs since they arent made to catch prey, theres nothing "sticky" in them...

As for how I know this stuff, I've been keeping spiders for over 30 years.

I love the comment, those were all great questions! I would love to see some sort of study done on this..... oh and than than put a tent and some REALLY good bug bomb on the whole city after!! As cool looking as that is , it is still creepy!