A fundamental constant is one that has to be measured by experiment, rather than being derived from any other quantities. Which values we choose to make fundamental and which ones are derived are somewhat arbitrary.
Koalas are native to southeastern and eastern Australia, living in forests of eucalyptus trees. They are basically sedentary animals that need to sleep a lot to give them time to digest their food. Being on the ground all the time would be a disadvantage, because predators could catch them easily.
Koala (Phascolarctos cinereus) Koalas (Phascolarctos cinereus) are native Australian tree-dwelling marsupials with predominantly grey coloured fur. They live in a range of temperate, sub-tropical and tropical forest, woodland and semi-arid communities dominated by eucalypt species.