Perhaps the characteristic that marks our species most distinctly is its arrogance. Conscious of who we are (we think) we stake the claim for minds for ourselves alone while all the evidence points away from that very conclusion. Naturalists are castigated for “anthropomorphizing” animals by stating that they have consciousness too, or—oh the heresy!—personality. Any of us who’ve spent time with two or more of the same non-human species, however, know that personality is a given. Animals think and feel and, yes, act on their own view of the world. I have to admit I fell in love with Sy Montgomery’s The Soul of an Octopus. I’ve read animal books from my youngest days, but finding an author so forthright about the feeling of getting to know another species is rare. And I learned tentacles full of information about octopuses. I had already known that octopuses are intelligent—I hadn’t realized just how smart—but since my interactions have only been with sleeping cephalopods on the opposite sides of aquaria glass, I had little to go by.

Throughout her charming book, even if the evidence is anecdotal, Montgomery reveals the personalities of the octopuses she got to know at the New England Aquarium. The reader can be left with no doubt that these are animals with personality, different from one another and strikingly conscious. We can’t define what consciousness is, but I tend to agree with Montgomery that it is what many people call “soul.” She admits that her religious tradition would likely frown upon her willingness to share such a valued commodity with an animal—an invertebrate, no less—but surely she is right. Many, if not all, animals have a form of consciousness. Heaven will be a much more interesting place for it.

Please don’t confuse my enthusiasm with sentimentalism. Those of you who regularly read this blog will know that books on animal intelligence by a variety of scientists make up a steady part of my literary diet. Biology, however, often has a difficult time in a world where physics and chemistry are treated with reductionistic glee. I was strangely satisfied when Montgomery mentioned that Stephen Hawking signed the Cambridge Declaration on Consciousness which proclaims humans alone are not the guardians of this phenomenon we don’t even understand. The Soul of an Octopus was one of those books that I couldn’t wait to keep reading, even if it meant being on my long commute each day. And I can’t help but think of how much intelligence we squander by claiming that only our own kind possesses it.