Batwing is fine and dandy. He dried off and flew away as soon as it was night time. He was not sick, just wet.

This is the huntsman spider, a common friend to be found in houses and garden across Australia. He's harmless really, don't let his large size intimidate you. Huntsmen won't bite humans unless provoked, are not venomous and are actually handy to have around the place, he'll use his speed and agility to keep your cockroach population under control.
Think of the huntsman as a handy pet. Respect his space, let him do his job and he'll look after you well.

An olive python (Liasis olivaceus), western Australia's largest python, having a feed on an Australian freshwater crocodile (crocodylus Johnstoni).

I'm from Darwin, Australia and our rivers here are full of these monstrosities. This guy here is nicknamed Nifty, and he is about 6m long.

68mm just fell in the last hour at Kununurra. Flushed all the cane toads out of my brothers dam. Some of them took the easy way out - hitching a ride on the back of a 3.5m python.

This was found in Broome, Western Australia and looks like an anemone. More specifically, Dofleinia armata, the armed anemone. Also called the striped anemone. It is considered extremely dangerous as it can inflict painful stings that take months to heal.

Picture of a termite mound in the northern territory of Australia, termites build the tallest structures out of any of the creatures on Earth. Humans would have to build something 10km (6.2 miles for those not on the metric system) tall to equal the scale of size of person to building. Termite mounds are also stronger than cement.