Tuesday, May 30, 2017

The Octopus Outsmarts Darwin Again

Commentary by Eric Metaxis on Break Point.org (May 8):

Imagine being able to make yourself more intelligent than your genes allow. If you were a slimy, spineless bottom-dweller, that might be a welcome bonus.

What’s the most intelligent animal on the planet? There are a lot of ways to answer that, and depending on your standard, apes, crows, dolphins, and parrots could all be contenders. But none of these vertebrates (animals with backbones) can lay claim to the incredible feats of one highly-intelligent group of invertebrates. A group that—according to new research—ignores the rules laid down by Darwin and takes evolution into its own tentacles.

I’m talking about cephalopods—the octopi, squid, and cuttlefish, which are widely regarded as scoring at the top of their class. These Mensa-worthy mollusks have been known to open jars, climb in and out of their tanks, communicate via a kind of Morse-code, and can camouflage themselves to match their surroundings with startling accuracy, using colorful skin cells.

And as I told you some time ago on BreakPoint, these eight-armed wonders of the deep defy evolution by exhibiting traits usually found in higher vertebrates like us. It’s a mind-boggling coincidence that Darwinists have long dismissed with euphemisms like, “convergent evolution.”

But octopi, squid, and cuttlefish seem to have altogether missed the memo about Darwinism, because new science is revealing another way in which they defy evolution.

In a paper published in the journal, “Cell,” Tel Aviv University researchers Joshua Rosenthal and Eli Eisenberg report that unlike almost all other animals, cephalopods routinely bypass the instructions in their DNA and edit their own genes.

In biology class, you probably learned that ribonucleic acid, or RNA, transcribes and carries the information coded in deoxyribonucleic acid, or DNA, to protein-factories in the cells. These proteins, built based on instructions from the DNA, are what make up our bodies. But what if we could edit the messages in our RNA to change the kind of protein produced? As it happens, that’s what cephalopods do—on a scale unknown anywhere else in the animal kingdom, and specifically in one area of their bodies: their nervous systems and brains.

The Tel Aviv researchers found “tens of thousands” of such RNA recoding sites in cephalopods, allowing a creature like the octopus to essentially reprogram itself, adding “new riffs to its basic genetic blueprint.” In other words, these invertebrates don’t care that they didn’t inherit the smart genes. They make themselves smart, anyway. [read more]

Fascinating. Cephalopodal genetic engineering? Hmm…

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