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 in some regions face increasing threats from urban expansion, disease, habitat loss, vehicle strike, and predation by dogs, and from their susceptibility to drought and climate change. However, the health, size and status of koala populations differ significantly across Australia. Listing of the species under national environment law After considering scientific advice from the Threatened Species Scientific Committee, the Environment Minister has listed the Queensland, New South Wales and Australian Capital Territory koala populations as vulnerable under national environment law. For more information, read the fact sheet on the koala listing. Habitat of protected populations