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 mammals, just like we are.Koalas are marsupials. That means they have a pouch to carry their joeys. All marsupial babies are called joeys. There are three kinds of koalas all named after their state where they live. The most common kind is the Queensland koala. Koalas live in Australia in Eucalytus trees.