Koalas lounge high in eucalyptus trees, sleeping up to 20 hours to process their fibrous, low‑energy diet. Specialised digestion lets them handle the leaves’ toxins. Though famously sleepy, they can sprint or swim when required—a reminder there’s more to them than cuddly calm. #oceania #australia #newsouthwales #sydney #sydneyzoo #koala #marsupial #wildlife #nature #conservation #travel #photography #fotografia