Lol no it isn't.. Sent from a Pineapple under the Sea. Trust me, I'm a scientist, bitch! Sent from a Pineapple under the Sea.
It is a myth, koalas sleep 22 hours a day or so because they are just lazy, they devoloped a low energy lifestyle to go with their low engery diet... They do not get drunk or stoned from the eucalyptus leaves It also started because they don't have to drink a lot because they get hydrated from the water in the leaves, so eatting is also their drinking, but its not drinking like getting drunk