The Hydra's Opsin: Doubling Down on Early Vision Complexity


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As discussed here, even the so-called third eye, which merely provides light sensitivity to its owner such as the iguana, involves incredibly complex biochemistry. Whereas evolutionists have always envisioned a neat ladder-like pathway of increasing functionality in vision systems, even rudimentary vision such as the third eye reveals stunning complexity. This notion of increasing functionality and complexity was advanced by Darwin who, after admitting that the evolution of the eye seemed absurd in the highest possible degree, decided that unless a critic can falsify his evolutionary thought experiment it must be a perfectly reasonable idea:

If it could be demonstrated that any complex organ existed, which could not possibly have been formed by numerous, successive, slight modifications, my theory would absolutely break down. But I can find out no such case.

In short order Darwin converted the profound into the mundane. But the facts of biology wouldn't cooperate. The farther back evolutionists peered in time the more complexity they found.

The third eye is a good example but new research takes the complexity farther back yet to 600 million years ago. The research found that the light sensitivity of the humble hydra is based on the same type of key opsin protein used in human vision.

We must believe not only that such an incredibly complex protein evolved somehow, but that it just happened to work splendidly in the as yet unforeseen incredible mammalian vision system. Imagine if a contraption your 5-year-old banged together in the basement just happened to work perfectly in a jet airliner. As the lead researcher commented:

This work picks up on earlier studies of the hydra in my lab, and continues to challenge the misunderstanding that evolution represents a ladder-like march of progress, with humans at the pinnacle. Instead, it illustrates how all organisms -- humans included -- are a complex mix of ancient and new characteristics.

It was all just a misunderstanding--now we understand. But with each new surprise, evolution becomes less likely and more complex.

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