What will happen to animals and insects that use the Earth’s magnetic field when the poles reverse?

Question

What will happen to animals and insects that use the Earth’s magnetic field when the poles reverse?

In: Biology

Answer 1

The earth’s magnetic poles will not reverse overnight or over the course of even a few years; estimates are that it could take between a thousand and ten thousand years for a reversal to occur. All the critters will be adapting along the way.

There are some estimates as low as dozens of years, but still, critters adapt or perish.

https://en.wikipedia.org/wiki/Geomagnetic_reversal#Duration