Koala around and its head has doubled in size. The eyes begin to open and fine fur grows on the forehead, nape, shoulders, and arms. At 26 weeks, the fully furred animal resembles an adult, and begins to poke its head out of the pouch. As the young koala approaches six months, the mother begins to prepare it for its eucalyptus diet by predigesting the leaves, producing a faecal pap that the joey eats from her cloacum. The pap is quite different in composition from regular faeces, resembling instead the contents of the caecum, which has a high concentration of bacteria.
Giant koala giant koala was in fact a folivore. Fossil remains of "P. stirtoni" have been discovered in Lake Eyre and Tarkarooloo basins in South Australia. It was once thought that the modern-day koala was descended from the giant koala, but this is now determined to be incorrect. Gilbert Price, of the University of Queensland, used improved dating techniques to analyze fossils of both types of koala to find that the two species were living together in the same arboreal niche. Which raises the question from what did the koala descend from and why one species of koala survived and the giant