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 found between south-eastern South Australia and Queensland, but only where enough suitable trees have been left. The largest koalas weigh over 10 kilograms and are found in Victoria, while the smallest live in North Queensland and weigh only 5.5 kilograms.In NSW, koalas mainly live on the central and north coasts, with some populations west of the Great Dividing Range, on the south coast and on the southern tablelands.oalas live for between 10 and 20 years, and generally breed between September and February. Female koalas can breed from about two years of age, and have a gestation period of about two months, producing one young koala a year, and on rare occasions they may produce twins.