Numbers have dropped from more than 80,000 in 2018, to fewer than 58,000 now.
Australia has lost around 30 percent of its koalas over the last three years.
It's because of droughts, bushfires, and developers cutting down trees.
The Australian Koala Foundation is urging the country's government to do more to protect the creature's habitat.
The non-profit group says numbers have dropped from more than 80-thousand in 2018, to fewer than 58-thousand now.

Company Behind Chatbot Calls For Paused Global AI Development
Israeli Ministers Ben-Gvir And Smotrich Barred From Travel To Ireland
Fine Gael Faces Criticism Following Recent EU Migration Decisions
Ceasefire Agreed Between Israel And Lebanon
18 Dead After Russian Overnight Attack On Ukraine
21 Year Old Jailed For Planned Terror Attack On 2024 Taylor Swift Concert
Iran Claims To Have Targeted US Airbase Overnight
Two Teenagers Among Those Dead After Bus Collides With Train In Belgium