Wild Oz Wednesday 🐨
🐨 Koalas (Phascolarctos cinereus) 🐨 are tree-dwelling marsupials whose diet mainly consists of eucalyptus leaves. While eucalyptus is toxic to most mammals, koalas have evolved digestive systems that neutralize the toxins.
SciArt by John Gould and Henry Constantine Richter for Gould's Mammals of Australia, Vol. 1 (1863). View more in Biodiversity Heritage Library with thanks to Smithsonian Libraries for digitizing.












