Koalas are highly specialized feeders, relying almost entirely on eucalyptus leaves, food that’s tough, low in nutrients, and toxic to most animals. They have a unique digestive system with specialized gut bacteria that break down the toxins and extract what little energy the leaves provide. Because of this low-energy diet, koalas spend up to 18–20 hours a day resting or sleeping, conserving energy when not feeding. Nikon D200 with Nikkor 600mm f/5.6 manual focus lens, ISO 200, f/5.6 at 1/160th of a second.
We use cookies to enhance your experience while using our website. If you are using our Services via a browser you can restrict, block or remove cookies through your web browser settings. We also use content and scripts from third parties that may use tracking technologies. You can selectively provide your consent below to allow such third party embeds. For complete information about the cookies we use, data we collect and how we process them, please check our Privacy Policy
Koalas are highly specialized feeders, relying almost entirely on eucalyptus leaves, food that’s tough, low in nutrients, and toxic to most animals. They have a unique digestive system with specialized gut bacteria that break down the toxins and extract what little energy the leaves provide. Because of this low-energy diet, koalas spend up to 18–20 hours a day resting or sleeping, conserving energy when not feeding. Nikon D200 with Nikkor 600mm f/5.6 manual focus lens, ISO 200, f/5.6 at 1/160th of a second.