The Most Adorable Animals On Earth Are Dying Out--And It's Our Own Stupid Fault

New research published in PLOS One shows the koala bear population is in decline--and it's because of humans.

According to CNN, a number of human-driven stressors are depressing koalas' immune systems, making them more susceptible to disease.

Human encroachment, or farming land previously occupied by koalas, is a major factor.

So is climate change, which is robbing the landscape of water and trees.