This is just a (very cute) crab with not many extra steps.
Carcinization is an example of a phenomenon called convergent evolution, which is when different groups independently evolve the same traits. It’s the same reason both bats and birds have wings.
This is just a (very cute) crab with not many extra steps.
And there are soooo many of those that ends up in crabs that some evolution cientists joke that we all will end up in the perfect shape.
A crab shape
We are all but mere stepping stones of our species glorious path of evolving into crabs.