They keep from getting bored in Darwin. Looks like a fast food place for crocs!
Not unknown to get taken by them in the deep north.
WOW! Gives some perspective on their size. That guy is huge.
Fast too - they ambush. This a saltwater croc. Males can routinely go over 5 meters are the largest land and river predator in the world. You'll be pleased to know they are in absolutely no danger - conservation wise - as a species. They're at least 6 million years old in their current form and they aren't going away.