For centuries the belief has been around that animals can predict earthquakes. Even scientists have acknowledged that animals may sense chemical changes in groundwater that occur when an earthquake is about to strike. Real life events also support the idea for example just before the 2009 Sichuan China earthquake tens of thousands of Frogs Appeared on City Streets. Citizens filmed the massive amount of frogs that represented a warning sign right before the earthquake struck.
Watch the video of Sichuan streets filled with frogs just before the earthquake struck: