about 0.2%.And their brains are smooth with no folds.Larger brains and more brain folds result in high intelligence.Thus,koalas don't have the brain capacity to learn anything new.Koalas sleep,find food,eat,and sometimes mate.They haven't learnt more behaviors for the last 15 million years...
For most students, the time of exams is very stressful and difficult. Some people find exam time so bad that they become ill, because they are afraid of failing, they are afraid of letting their parents down. If exams are really making you ill or worried, don’t hide your feelings. Tal...