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An octopus in a zoo. Due to their intelligence, cephalopods are commonly protected by animal testing regulations that do not usually apply to invertebrates. In the UK from 1993 to 2012, the common octopus (Octopus vulgaris) was the only invertebrate protected under the Animals (Scientific Procedures) Act 1986. [48]
[10] Octopus eyes, too, look and work much like those of vertebrates; but there, Baer remarks, the similarities end. Cephalopods are "immensely foreign", with "a distributed sense of self" and a "lived reality" quite unlike human consciousness, a feature that, he notes, Godfrey-Smith calls "the most difficult aspect of octopus experience to ...
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 ]
Japanese erotic art, shunga, includes ukiyo-e woodblock prints such as Katsushika Hokusai's 1814 print Tako to ama (The Dream of the Fisherman's Wife), in which an ama diver is sexually intertwined with a large and a small octopus. [179] [180] The print is a forerunner of tentacle erotica. [181] Its many arms that emanate from a common center ...
Secrets of the Octopus explores the life, culture, and behavior of different octopus species across the globe. Featuring narration by actor Paul Rudd, and commentary and discussion by a number of marine biologists, scientists, and experts in the field, the documentary series seeks to bring viewers closer than ever to one of the planet's most elusive and alien creatures.
A two-month-old octopus tries to unscrew the lid of a jar to get hold of its content, a crab, at Denmark's Aquarium in Copenhagen in 2004. Credit - Jorgen Jessen—AFP/Getty Images
Egg string and embryos of H. atlanticus collected north of the Cape Verde Islands): The eggs measure around 8 mm (0.31 in) at their widest. The seven-arm octopus is so named because in males, the hectocotylus (a specially modified arm used in egg fertilization) is coiled in a sac beneath the right eye.
A new study found that some members of an octopus species hunt cooperatively in groups with fish. Video shows octopuses punching their companion fish to keep them on task and contributing to the hunt.