Eucalyptus leaves also have an aromatic scent, and when rubbed, release refreshing-smelling oils. You may have experienced eucalyptus oils being used in decongestants and cleaning products.

It also appears that koalas are unable to recognize their food source unless it is attached to a tree. If a zookeeper serves a koala eucalyptus leaves on a plate, the animal won't eat.

Calonectria leaf blight represents a serious phytopathological challenge affecting Eucalyptus plantations worldwide. This disease is caused by a complex of Calonectria species, with pathogens such ...

Visitors will often spot the koalas snoozing as they digest eucalyptus leaves, which make up nearly their entire diet. Eucalyptus has little nutritional value and takes significant time to digest.