An article published in the journal “Nature” describes a research on octopuses. The DNA of a speciment that belongs to the species California two-spot octopus (Octopus bimaculoides), which lives off the coast of California, has been sequenced, the first case involving an animal belonging to the class of cephalopods. Octopuses are very different from all vertebrates, so much as to be defined aliens by various scientists, and showed remarkable intelligence. This species has about 33,000 protein-encoding genes, while humans have fewer than 25,000.