Their preferred food, eucalyptus, is low in calories and high in toxicity. Koalas have almost no brain folds and are really, really dumb.
They can’t recognise leaves if they aren’t on a tree. People love them because they are cute loving teddy bears, but they don’t have a strong evolutionary niche.
Worth the drive when visiting the Bay Area. They’re about the size and weight of an F150.
https://www.boekwinkeltjes.nl/b/103530821/De-grote-encyclope...
For sale on the local ebay equivalent for 1,50 euros... a steal at that price:
https://www.marktplaats.nl/a/boeken/dieren-en-huisdieren/m14...
The ad has some of the contents in it, most of the images were b&w with only very few pages in color. Still, I loved that book and tried real hard to learn it by heart.
Koala's still stand a chance of survival if humanity wishes it to be so.