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However, they don’t have just one brain, but a central brain in their head and a mini-brain in each arm. Like humans and other mammals, octopuses are adaptable and great problem-solvers. Watch ...
Octopuses (along with cuttlefish) have the highest brain-to-body mass ratios of all invertebrates; [48] this is greater than that of many vertebrates. [49] Octopuses have the same jumping genes that are active in the human brain, implying an evolutionary convergence at molecular level. [50]
Octopuses have also been observed in what has been described as play: repeatedly releasing bottles or toys into a circular current in their aquariums and then catching them. [ 32 ] Cephalopods can demonstrably benefit from environmental enrichment [ 33 ] indicating behavioral and neuronal plasticity not exhibited by many other invertebrates.
All living cephalopods have a two-part beak; [12]: 7 most have a radula, although it is reduced in most octopus and absent altogether in Spirula. [ 12 ] : 7 [ 98 ] : 110 They feed by capturing prey with their tentacles, drawing it into their mouth and taking bites from it. [ 25 ]
In the video above, the scientist explains that this particular species of octopus has "beaks for mouths and their brains are donut-shaped and surround their esophagus.
The common octopus (Octopus vulgaris) is a mollusk belonging to the class Cephalopoda. Octopus vulgaris is one of the most studied of all octopus species, and also one of the most intelligent. It ranges from the eastern Atlantic, extends from the Mediterranean Sea and the southern coast of England , to the southern coast of South Africa.
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The octopus brain has folded lobes (a distinct characteristic of complexity) and visual and tactile memory centers. They have about 300 million neurons. [23] They have been known to open tank valves, disassemble expensive equipment, and generally wreak havoc in labs and aquaria. [23]