“Koalas are mostly nocturnal. Nocturnal animals are awake at night and asleep during the day. Koalas, however, sleep for part of the night and also sometimes move about in the daytime. They often sleep for up to 18-20 hours each day.” Source: Save the Koala

Wouldn’t that make them biturnal? Or ambiturnal? Or ripvanwinkleturnal?

I heard somewhere that people often thought they slept so much because they were drunk from the eucalyptus leaves. Do you think this is true or no? I will get back to you on it…