Assuming this so-called "evidence" wasn't put here by satan himself to stray you atheist smiling commies away from god (which is probably the case), remember that everything was perfect before the FALL, so animals had no need of magnetic field to navigate or migrate.
Also, the very godly man Kent Hovind proved that there was a canopy of water above the earth back then, protecting living things from the radiation from the sun.
This is not to mention that everything was created last Thursday with all the evidence already pre-molded to stray you from god.
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