Squid: Difference between revisions
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== Squid == | == Squid == | ||
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File:Sandalops_melancholicus.jpg|Squid | |||
File:Architeuthis_princeps_image_modified.PNG|Squid | |||
File:Lepidoteuthis_grimaldii_617_mm_ML.jpg|Squid | |||
File:Taningia_danae.gif|Squid | |||
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File:Sepioteuthis_sepioidea_(Caribbean_Reef_Squid).jpg|Squid | File:Sepioteuthis_sepioidea_(Caribbean_Reef_Squid).jpg|Squid | ||
Revision as of 12:21, 18 February 2025
Squid are cephalopods of the two orders Myopsida and Oegopsida, which were formerly regarded as two suborders of the order Teuthida, however recent research shows Myopsida and Oegopsida are distinct orders. Squids are among the most intelligent of invertebrates, with some large species exhibiting complex behaviors and high learning capabilities.
Anatomy
Squids have a soft body. Their body can rapidly change colors and patterns. Squids have eight arms and two tentacles furnished with denticulated suckers, with which they secure their prey. They have a distinct head, bilateral symmetry, a mantle cavity, and arms. Squids have a complex brain in the form of a nerve ring encircling the oesophagus, and a highly developed nervous system, including complex eyes similar to those of vertebrates.
Behavior
Squids are strong swimmers and certain species can 'fly' for short distances out of the water. They are carnivorous, and the majority of squids are active predators, eating fish, other sea creatures, and even other squids. Squids use their tentacles to catch prey and their beak to kill and tear prey into manageable pieces.
Reproduction
Squids are semelparous, meaning they reproduce just once before dying. Most squids lay eggs, although some species give live birth. The male squid deposits a spermatophore, or packet of sperm, into the female's mantle cavity with a specially adapted arm, the hectocotylus.
Human Interaction
Squids are a popular food in many parts of the world, and squid fisheries make up a significant portion of the global fishery. They are used in cuisines around the world, often known as "calamari". Squids have also been the focus of many myths and legends, including the giant squid and the kraken.
See Also
References
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