Good job putting all that together. It's a bit on the easy side though, I'm sorry but I didn't even read the sentences, I just scanned the red letters.
That's no problem for me, if you're that good at solving word scrambles, then that's great. I did put a lot of effort into coming up with the sentences however. I hope you took the time to read through them afterwards.
Nice quiz. Marsupials are native to Australia, but not endemic. That would mean they are also restricted to Australia, but there are also marsupials native to the Americas.