Watch this disturbing video.
It shows some Florida panthers stumbling and falling as they try to walk along trails.
The Florida Fish and Wildlife Commission (FWC) say some of the animals have been hit with a mysterious neurological disorder that’s affecting their ability to walk.
Wildlife officials say the videos are alarming because they are from multiple areas throughout the state.
There are only about 120 adult panthers in the population and are listed on the Endangered Species Act.
FWC says it’s testing for toxins like rat pesticides, also infectious diseases and nutritional deficiencies to solve the mystery.