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.
Koalas are native to Australia. They are not found in any other country in the world. Koalas are found in all states of Australia except Tasmania and Western Australia. Most koalas in South Australia were exterminated, but they were repopulated with some Victorian koalas. Koalas spend nearly all of their time living in trees.