The researchers say that the same relationship holds true for cuttlefish, chimpanzees, and humans.
Just as vertebrates differ greatly in intelligence and sentience, invertebrates may differ greatly too.
Even compared to each other, the genomes of three cephalopods studied had been broken up and extensively reorganized.
The humble squid astonishes scientists with its super-powers. Are these marine champions really the products of random mutations and natural selection?
That’s the way it is, universally, with creative invention.