The Battle Continuesnew study suggests that this navigational miracle, in part, is due to geomagnetic imprinting. That is, the salmon sense, remember, and later use a map of the Earth’s magnetic field in and around their home river inlet.
These findings add yet more wonder to the salmon story. For when these fish transition between fresh water to sea water they must make substantial physiological adjustments, including new gill tissues that enable the salmon to maintain the correct salt balance. As one researcher explained, it is a metamorphosis that is almost as dramatic as a caterpillar morphing into a butterfly.
Evolutionists insist all of this arose by chance (no natural selection doesn’t help, it cannot induce new designs but rather only kills off bad designs). Every mutation leading to the incredible salmon would have had to occur by chance, without reference to any final design. That means there would have to be gradual pathways leading to geomagnetic imprinting, gill replacement capability, and all the rest.
Of course there is no scientific evidence for any such thing. Once again it is metaphysical certainty versus the empirical evidence as evolution continues to wage its battle against science.