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At Mind Matters News: Do brains really evolve? The horseshoe crab’s brain didn’t


It’s very rare to find an intact fossil brain but a rare combination of minerals preserved one from 310 million years ago:

Finding an intact brain that is just like a modern horseshoe crab’s brain enables paleontologists to make some guesses about the ancient animal’s behavior:

“The preserved central nervous system lends insight into the ancient crab’s behavior, the researchers say. Because the fossil brain is so similar to the brains of modern horseshoe crabs, Bicknell says, it’s safe to say the ancient animal’s walking, breathing and even feeding habits were probably similar to horseshoe crabs’ today, including eating with their legs. “Imagine eating a hamburger with your elbows,” Bicknell says. – Rebecca Dzombak, “How Fossilization Preserved a 310-million-year-old Horseshoe Crab’s Brain” at ScienceNews”

To the extent that the horseshoe crab is more closely related to the spider, it may have a similar type of intelligence. But we can’t be sure just now. For example, the nautilus is a cousin of the octopus but, while the octopus is sometimes considered a “second genesis” of intelligence, on account of its braininess, no such thing is said of the nautilus.

News, “Do brains really evolve? The horseshoe crab’s brain didn’t ” at Mind Matters News

Takehome: Researchers found that the 310 million-year-old brain was almost identical to that of a modern horseshoe crab. The behavior was likely similar too.

You may also wish to read: In what ways are spiders intelligent? The ability to perform simple cognitive functions does not appear to depend on the vertebrate brain as such


If we find life on exoplanets, some of it might be “crabs”. Over millions of years, many crustaceans gradually grew to look more and more like crabs, a process called convergent evolution. In an environment similar to Earth’s, we might expect life forms to converge on similar solutions. “Crabbiness” might be one of them.

The horseshoe crab is one of the most famous "living fossils" because it appears to be unchanged in 310 million years. This works against Darwinism for two reasons: 1. Assuming Darwinism is "survival of the fittest", one would expect that in the evolving biosphere, the unchanging horseshoe crab would become less and less fit competing with more fit species every few million years. Yet there it is, the same horseshoe crab doing well enough - not being outcompeted to extinction. 2. With the Darwinian mechanism of accumulated small changes, one would expect that genetic drift and other collected mutations would change the horseshoe crab's genome and physiology in various ways throughout the millions of years, to the point where it was no longer recognizable as such. But here it is anyway, by all appearances, largely unchanged by all that time. Of course Darwinians do not accept such arguments, instead playing both sides of the stasis vs. change coin, making their "theory" ever less falsifiable. Fasteddious
Evo psychologist actually want this because it allows them to pattern out our brain It’s some thing a little while back that we posted on discussing how evo psychology might not even be possible Because of something known as the matching problem https://gizmodo.com/this-philosopher-is-challenging-all-of-evolutionary-psy-1842248835 AaronS1978
Just one more nail in the coffin of evolution, which will be ignored by Darwinists. BobRyan

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