RE: By chance?
January 30, 2020 at 11:31 am
(This post was last modified: January 30, 2020 at 11:37 am by Mister Agenda.)
(January 29, 2020 at 5:21 pm)Fake Messiah Wrote:(January 29, 2020 at 4:50 pm)Mister Agenda Wrote: Samurai crabs are not food crabs so humans don't prey on them anyway.
But humans do prey on them. Here's from an article
Quote:Samurai crabs do show us how quickly evolution works. What we have here is an instance of artificial selection, or a change in the physical characteristics of another species owing to the influence of humans.
Think of it this way, first comes the memorable sea battle, spawning legends. Next a fisherman finds a crab with markings on its back that look something like a human face. Does he eat it? No, that crab is thrown back. Now it has a survival advantage over crabs whose markings don't happen to look like anything to humans.
A cycle begins. Every generation that has a more human looking face stands a better chance of survival than the last. In time, perhaps over a thousand years, the originally random markings on Samurai crabs really do look like Samurais.
https://indianapublicmedia.org/amomentof...-crabs.php
They're tiny crabs, their bodies are about two finger widths across. Not worth trying to get the meat out of. Humans are not a significant predator of very small crabs, or at least the Japanese aren't. No one who has waxed on about how the markings could have evolved bothered to check if they were food crabs to begin with. It's just a coincidence. The patterns on these crabs evolved without human input.
I'm not anti-Christian. I'm anti-stupid.