![]() ![]() It has many ingenious ways to escape predators. It can squeeze through any space smaller than its brain case or beak. It can use its jet to spray things or to propel itself in motion. A three-inch sucker can lift 30-35 pounds and they can have 1600-1920 of them.Īn octopus can change space and color to blend with its environment in three-tenths of a second. For example, with their suckers, an octopus can not only touch, but can taste and smell ("Other Minds," page 67). However, these animals are so different from us in abilities, it is difficult to find a scale to measure their intelligence. Three-fifths of these neurons are in their arms and an octopus’ brain size is large relative to its body size. The common octopus has about 500 million neurons in its body, similar to dogs. Essentially, he maintains that the octopus, with all its complexity, developed “on an entirely separate evolutionary path from ours.” He believes the common ancestor for human and the octopus was a small flattened worm, which occurred about 600 million years ago.Īfter that there was a split between invertebrates and vertebrates. Professor Godfrey-Smith’s book is a book about philosophy, “as well as a book about animals and evolution”. Given glacial melt, there will be even less land. Most of the animals in the planet live in the ocean and most of them are invertebrates. “The ocean occupies more of the Earth (70 percent of its surface area, more than 90 percent of the habitable space) than does land.” Sy Montgomery, "The Soul of an Octopus" ( 2015). ![]() Putting things in perspective, the “Earth” should probably be called the “Water.” Peter Godfrey-Smith, the author of "Other Minds: The Octopus, The Sea and the Deep Origins of Consciousness" (2015) is quoted as describing the octopus as the “closest we will come to meeting an intelligent alien.īiologist Roland Anderson asserts that the octopus is the “smartest invertebrate on earth.” Since “95 percent of the creatures on earth are invertebrates, they’re facing an awful lot of competition.” Katherine Harmon Courage, "Octopus!" ( 2013). The octopus is from the order of animals called cephalopods which include cuttlefish, squid and the nautilus. It has a short life, little society, yet is notably curious and mischievous, highly individual and not happy in captivity. It is an invertebrate that can be found in almost all the world’s oceans. What animal has blue blood, three hearts and can change color and shape within three-tenths of a second? The same animal has venom like a snake, a beak like a parrot and ink like a pen. ![]()
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