Male koalas mark their territory by rubbing their chests on a tree. Male koalas have a dark scent gland in the middle of their chest
Image from Wikimedia public domain.
Koala (Hover)
Cars and chlamydia killing Queensland koalas
Being hit by cars and chlamydia were the top causes of a dramatic rise in south-east Queensland koala deaths over the past two decades, according to a new study. Scientists analyzed data about koala disease and death from 1997 to 2013. Ref. Source 3y.