Positive ions, animals ability to perceive earthquakes
Hello!
I came on this forum to ask a question, I hope this is the right section for it.
I read on the internet that some animals can perceive earthquakes before humans, by using their hearing or smelling or by perceiving the vibrations with their paws, but I've also seen that some animals can "perceive" positive ions in the air released by the movements of the rocks to sense that an earthquake will occur in the future.
My question is, what is the sense they use to perceive this ions? Do they use smelling? Does the long distance allow them to perceive those ions with smelling anyway? Or does it happens only with smaller distances?
I read in particular this happened with a study involving mice in Peru.
Thanks for the answer!