Trivia: koalas are the only critter with a brain that does not fit snugly into its skull. Since they more or less predator-free up a gum tree and eucalyptus leaves are highly toxic, nature decided to focus on digestion at the expense of intelligence, shrinking the brain down to a walnut surrounded by jelly and giving them slow reactions and a dozy 'thousand-yard stare' in the process. |
