cool fact #2 B)

this is a preety common one but koalas have smooth brains
if you put leaves on a plate they will not know how to eat them
also the only food they eat is basically poison so they have to eat crap (literal) as children to build up a tolerance
well im glad I didn't lose the evolutionary lottery quite as hard as the Phascolarctos cinereus
http://kickassfacts.com/wp-content/uploads/2013/09/1052-Koalas.jpg