If you want to speculate about that, then how about the bamboo die-off cycle? Imagine if you lived in the PNW or Appalachia, and every 120 years the entire side

If you want to speculate about that, then how about the bamboo die-off cycle? Imagine if you lived in the PNW or Appalachia, and every 120 years the entire side of a mountain launched an army of hungry rats at you. Starves all those cute smug “panda” gluttons too.